Gray facing fierce competition in 49ers’ wide receiver room

SANTA CLARA — With all of the star power on the 49ers' offense, Danny Gray has his work cut out for him. The second-year receiver faced challenges in his first season as many rookies do, particularly in coach Kyle Shanahan's offense. The attention to detail needed in the 49ers' offensive system is a serious undertaking for a first-year NFL player. Facing a 17-game season and beyond is another. "I can tell he is in shape, but I can't decide," Shanahan said during the first week of training camp. "We'll see how he handles this whole camp. I thought he had pretty good OTAs, took a step forward and came back in good shape, and we'll see as he gets more reps and more opportunities and stuff how much better he's gotten." Brandon Aiyuk is ascending as one of the top receivers in the league, and Deebo Samuel has entered training camp with heightened motivation to return to his 2021 First-Team All-Pro productivity. The competition for reps in the receivers group is fierce. Gray also is battling for reps with Jauan Jennings, who is in a contract year, Ray-Ray McCloud, rookie Ronnie Bell and several others in the talented receivers group. "We are our own competitors," Samuel said Thursday....