Hall was cut in the forehead by teammate Corey Potter's skate during warmups before Edmonton's game at Nationwide Arena against the Columbus Blue Jackets. He was helped to the dressing room by one of the team's trainers.
Because Hall's injury happened after Edmonton had submitted its official lineup, the Oilers will have only 17 skaters against Columbus.
Hall, the first player taken in the 2010 NHL Draft, has 15 goals and 31 points in 36 games in his second NHL season.
We want to make sure that whoever makes our team really makes our team by earning it and not putting them in situations where they get preference because of their status as a first-round pick or whatever it might be. That's not going to happen. Everybody has to earn their way on our team.
— Columbus Blue Jackets general manager Jarmo Kekalainen on the team's prospects at development camp