Leveling the Playing Field. Idiom.To give everyone the same advantages or opportunities.

Tom Brady, who is suffering from a leg injury that requires he wear a walking cast, is trying to level the playing field ahead of the Super Bowl matchup with Eli Manning and the Giants. Unfortunately, to truly level the playing field against Eli, Brady would need to break both legs and show up to the game completely loaded, though even then, I'd give the Pats a 10 point advantage.