Memphis Grizzlies guard Grayson Allen (concussion) has been ruled out for Sunday's game against Houston. Allen took a hit to the head during Friday's game- and was being evaluated by the team's medical staff. He's currently in the league's concussion protocol. Per-36 minute darling De'Anthony Melton is coming off a 16-point game and should be considered in DFS formats. Guard Dillon Brooks could also warrant some consideration, while Desmond Bane should see additional minutes.