n the second half. I thought he looked tired (on offense), the coach said. But he was doing a good job on Kaminski, who got

Two of the top young running backs in the NFL will share the field in San Diego on Sunday.And both players were considered huge question marks entering the season after disappointing rookie campaigns.San Diegos Melvin Gordon is finally living up to his star billing, while Miamis Jay Ajayi came out of nowhere to become one of the NFLs top rushers. Those developments add plenty of luster to Sundays matchup (4:05 p.m. ET, CBS) between the Chargers (4-5) and Dolphins (4-4).Gordon is coming off the top game of his career, a 196-yard rushing effort against the Tennessee Titans that boosted him to third in the NFL with 768 yards. He also leads the league with 11 touchdowns (nine rushing, two receiving) after failing to find the end zone as a rookie.Ajayi is in the midst of a superb three-game frenzy in which he has rushed for 529 yards, a stretch that saw him become just the fourth player in NFL history to post back-to-back 200-yard outings. He ranks sixth in the NFL with 646 rushing yards and is averaging a sparkling 6.0 yards per carry.Turns out the two 23-year-olds have a close friendship, stemming from working out together prior to the 2015 NFL Draft.Im always checking on Melvin every week to see how he does, Ajayi said. Im so proud of him to come back from last year, where he wasnt able to score a touchdown and a lot of people were kind of starting to write him off a little bit.Through talking with him through the offseason and everything, he really put his head down and did a lot of things to set himself up for a great year. Hes starting to showcase the ability that everyone knew he had, and its exciting to see how well he has been doing.Gordons rushing output against Tennessee was the ninth most in Chargers history, and he added 65 receiving yards to give him 261 total yards.He already has passed last seasons total of 641 rushing yards. Gordon also has erased last seasons image as a fumbler -- he lost four of the five he put on the ground -- and coach Mike McCoy now repeatedly refers to him as the teams bell cow.Every guy wants to make a play, Gordon said. Every guy wants you to look at him and think, I can count on this guy. Thats how we all want to be. When you get the opportunity to have the ball in your hands, its your job to make something happen.Ajayi is making things happen as well after opening the season as a healthy inactive against the Seattle Seahawks. Arian Fosters injury issues -- and eventual retirement -- opened the door for Ajayi, who responded with outings of 204 yards against the Pittsburgh Steelers, 214 versus the Buffalo Bills and 111 against the New York Jets during the clubs three-game winning streak.The play of rookie left guard Laremy Tunsil helped fuel Miamis rushing success. Getting Ajayi loose could be a challenge on Sunday with San Diego ranking fifth in the NFL in rushing defense at 85.3 yards per game.Rookie defensive end Joey Bosa is making an impact on the Chargers defense, as he has four sacks in five games. Cornerback Casey Hayward, tied for the NFL interceptions lead with five, and outside linebacker Melvin Ingram, who has a team-high five sacks, also are enjoying standout seasons.San Diego quarterback Philip Rivers is feeding off the improved run game, throwing for 2,560 yards and 17 touchdowns against seven interceptions.Dolphins quarterback Ryan Tannehill is experiencing a relatively quiet campaign by passing for 1,877 yards and eight touchdowns against seven interceptions. He has passed for just 605 yards during the three-game winning streak that has been highlighted by Ajayis emergence.Miami ranks just 30th in defending the run (136.1 yards per game) despite the presence of defensive tackle Ndamukong Suh. Veteran defensive end Cameron Wake has a team-best five sacks, including four in the past three games.The contest also marks the first time that McCoy and Miamis Adam Gase will square off as head coaches. The two spent four years together on the Denver Broncos staff before McCoy became the Chargers coach in 2013.Another backdrop is that the contest is San Diegos first at Qualcomm Stadium since the citys voters overwhelmingly said no to a ballot measure to fund a $1.8 billion downtown stadium. The franchises future home is once again in limbo.As you can imagine, were all disappointed, Rivers said. In the midst of a season, you cant get too caught up in it.Rivers passed for 311 yards and three touchdown passes last December when the Chargers sailed to a 30-14 victory over the Dolphins. Custom Devils Jersey China . The 18-year-old American had five birdies in her bogey-free round for a 17-under total of 196. Lee held the overnight lead but mixed three birdies with two bogeys for a 70. 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ATLANTA -- Senior forward Antonio Campbell went for game highs of 25 points and 12 rebounds Friday as Ohio University beat Georgia Tech 67-61.The Bobcats second straight win in an Atlantic Coast Conference gym came down to their big man, long balls and Ohios experience over the youngest team in the nation.Georgia Tech (2-1) led 32-27 at halftime and outrebounded Ohio 48-37 overall, but the Bobcats (3-0) made seven 3-pointers in the second half. Thats when fifth-year senior Kenny Kaminski scored all 15 of his points from beyond the arc.Fourth-year junior point guard Jaaron Simmons added 17 points and nine assists, and the Bobcats three elders combined for all 10 of their made treys.Campbell added three, same as Techs total.The 6-foot-9 reigning Mid-American Conference player of the year wasnt around when Ohio won 61-55 at Maryland in 2007, yet said, We were pretty excited to come in and play against an ACC school. Theyre big, athletic. All teams in the MAC arent like that.The Yellow Jackets -- who started two true freshmen and had four players making their third career starts -- were led by junior center Ben Lammers career-high 22 points, 11 rebounds and four blocked shots. He held his own one-on-one against Campbell.Ohio took a difference approach.After watching tape of Techs first two games, in which powerfully built guard Josh Okogie scored 18 points each time, Bobcats head coach Saul Phillips stationed sophomore guard Jordan Dartis on Okogie and sagged on him.Theyd made seven 3s (in the first two games), Phillips said of Tech. We tried to make sure our help was a little exaggerated ... we got guys whove played a lot together.Okogie went 2 of 13 while scoring five points, and the Jackets in the second half shot just 27.8 percent (10 of 36).After Kaminski made a pair on back-to-back possessions to give Ohio a 49-46 lead with 11:02 left in the game, Tech never led again and tied only once -- on Jacksons short jumper at the 8:11 mark.From there, the Bobcats stretched the game out.We went iin talking the entire time about, `Youve got to take the 3 out, and we did a good job in the first half, said Tech coach Josh Pastner.dddddddddddd In the second half, Kaminski got loose and hit a couple big shots that changed the complexion of the game. That was the big difference right there.BIG PICTUREOhio: The Bobcats are better when Campbell and Simmons are clicking. Simmons struggled in the first half, scoring nine points on 3-of-9 shooting with five turnovers -- mostly against 6-8 Tech swingman Abdoulaye Gueye. He made half his six shots in the second half, rang up six of his nine assists and turned the ball over just once. Theres no question that that one of the biggest narratives of this game is weve got guys that have played a lot together, Phillips said.Georgia Tech: Senior forward Quinton Stephens was 1 of 9 Friday for six points, and hes 7 of 26 in three games. Fellow senior Josh Heath, potentially the starting point guard, will sit out one more game as part of a four-game suspension for violating team rules.HOW ABOUT A DO-OVERWith Stephens offensive struggles, Pastner gave him a break in the second half. I thought he looked tired (on offense), the coach said. But he was doing a good job on Kaminski, who got hot. I regret subbing him ... that ones on me.STOCK OPTIONAt 6-9, 244 pounds, Campbell has eyes on the next level of the game, which may have eyes on him. Theres a reason NBA teams are looking at him, Phillips said. He lost 30 pounds since last year; he was chunky ... he may be a second-round prospect now with maybe some ability to slide up.UP NEXTOhio: The Bobcats will be idle for a week before playing host Nov. 25 to Tennessee Tech, which Georgia Tech beat 70-55 in the season opener.Georgia Tech: The Yellow Jackets will play the fourth of five home games to start the season Tuesday when they face Sam Houston State. Ohio beat SHSU 96-75 Monday. ' ' '