That man is center Roy Hibbert, who will be the most important player heading into Game 6.
The big two are making some serious noise, but with the actual biggest member of their crew Chris Bosh out, the Pacers must see a huge performance from Hibbert.
No excuse for him not to.
Hibbert was solid on the boards in the last game grabbing 12 rebounds, but he was nowhere to be found on offense, scoring just eight points on 3-of-10 shots.
Can the Pacers pull out a win with a solid game from Hibbert?
This postseason he is averaging 11.7 points per game, but the team will need more than that from him.
In two of the team's biggest margins of victory this season, Hibbert scored 19 and 18 points against the Heat and Orlando Magic, respectively.
The team obviously can't hop on Hibbert's back and expect him to carry the team, but they do need him to convert many of their offensive possessions using his 7'2", 260-pound frame to their advantage.
Perhaps that is exactly what Larry Bird was talking about when he complained following their loss Tuesday.
"I can't believe my team went soft," Bird said on the phone. "S-O-F-T. I'm disappointed. I never thought it would happen."
Defense is key to this situation, especially in terms of closing the lane up on defense.
It won't be easy to stop James and Wade, especially with a Eastern Conference Finals berth on the cusp. The Pacers could at least be in good position to spoil the potential party and extend this series if they can get a solid contribution from their big man.
The Pacers have one advantage in this battle, so they must use it to make sure they can stay alive.