With Berdych's victory, the Roger-Rafa match becomes very significant in terms of ATP Rankings.
If Nadal wins, he should win the tournament (I don't see anyone other than Fed stopping him) and so can actually leapfrog to No. 2 and Federer would drop to No. 7. Rafa would then be in fantastic position to take the No. 1 spot
If Federer were to somehow win, Rafa would stay where he is and Roger would need to win the tournament anyway to protect his own ranking.