Philadelphia Phillies superstar Bryce Harper has been one of the most dominant players at the plate over the last decade. However, his career could have had a very different trajectory.In his early teenage years, the two-time MVP used to dominate from the mound with his fearsome fastballs. A video shared by Pastime Tournaments on Thursday, a 12-year-old Bryce Harper's domination from the mound surprised fans."Bryce Harper at 12 years old was something else," the post was captioned. View this post on Instagram Instagram PostFans reacted to the rare footage of the Phillies star from his early baseball career."See kids, it doesn’t always work out. He never pitched in the Majors," a fan wrote."I knew he could hit, never knew he could pitch," another fan wrote."6ft 1in. At 12 then don’t grow anymore that’s crazy," wrote a fan.(Image source - Instagram)Many fans reacted to Harper's frame at such a young age."Thats crazy you only grew 1 more inch after 12," exclaimed a fan."What? So he stopped growing at 12? Literally the only human to max out in 7th grade," wrote a suprised fan.While Bryce Harper was one of the touted hitting prospects out of high school, the former Washington Nationals star pitched one game during his college baseball stint with the College of Southern Nevada.Bryce Harper gets inspired by Phillies pitcher's resilienceThe Phillies received a huge blow earlier this week after ace Zack Wheeler underwent blood-clot surgery. After Wheeler's surgery, the Phillies won four in a row in the ace's absence.Phillies superstar Bryce Harper talked about how Wheeler's injury made the team want to win more.“Obviously, when you have a player that’s going through something that’s way bigger than the game and everything else, kind of makes you want to win a little bit more for him,” Harper said. “I don’t know if it helped us, but we’re playing good baseball right now. We got to keep doing that.”Harper is batting .263 for the season with 21 home runs and 60 RBIs as the Phillies lead the National League East with a 74-54 record, holding a six-game lead over the New York Mets in second place.