Germany's Haas upsets Djokovic at Miami tennis

MIAMI, March 26, 2013 (AFP) - Germany's Tommy Haas upset world number one Novak Djokovic in straight sets 6-2, 6-4 to reach the quarter-finals of the Miami Masters tournament on Tuesday.

Haas was facing his first world No. 1 opponent since the third round of the 2009 Australian Open, when he lost to Rafael Nadal.