Nick Chubb is on a mission to prove his doubters wrong, and for the Cleveland Browns, it can only mean good news. The former running back is on the comeback trail after a grueling injury suffered in Week 2 of the 2023 season, and a recent video of him training impressed the fans.Chubb can see squatting over 540 pounds just eight months after having surgery to fix both his ACL and his MCL. He tore the knee ligaments in a game against the Pittsburgh Steelers, and many doubted that he would be able to return to the league in the same capacity.However, the video of his squat left NFL fans extremely impressed with how quickly he was able to rehab and get back into the grind. Based on what we've seen of Nick Chubb so far in his career, his best days might still be here:"When he’s 50 he’s barely going to be able to walk", wrote a fan"Promised myself I wouldn't draft him again. I’ll be drafting him", said another."Nick Chubb's injury was so awful that even networks refused to show the replay. I am glad he can walk after that. I hope he gets back to form, but I also hope he doesn't rush too much.", another noted.Nick Chubb is set to make his NFL return on national television on September 8, as the Browns play the Dallas Cowboys in the first game of the NFL season. It will also be Tom Brady's first game as an NFL broadcaster for FOX.Nick Chubb was just one in a long list of injuries for the Browns in 2023Although the team was able to make the playoffs in an impressive manner, the Browns had many important players injured in 2023. The fact that they won 11 games while starting five different quarterbacks is one of the craziest stats of the season.Apart from Chubb, they also lost quarterback Deshaun Watson, tackles Jack Conklin, Jedrick Wills Jr. and Dawand Jones, safety Rodney McLeod, defensive tackle Maurice Hurst and linebacker Anthony Walker. The list was really long.