Chad Dawson vs. Adrian Diaconu
2011-05-21 : Chad Dawson 173 lbs beat Adrian Diaconu 174½ lbs by UD in round 12 of 12
- Location: Bell Centre, Montreal, Quebec, Canada
- Referee: Michael Griffin
- Judge: Claude Paquette 117-111
- Judge: Benoit Roussel 118-110
- Judge: Jack Woodburn 116-112
Aired On: HBO World Championship Boxing
- Chad Dawson 29-1 (17 KOs) vs. Adrian Diaconu 27-2 (15 KOs)
- Fight was on the undercard of Jean Pascal vs. Bernard Hopkins (2nd meeting).
- Dawson entered as the # 4 light heavyweight in the world according to The Ring Magazine. Diaconu, a 4/1 betting underdog , was ranked # 7 by the same publication. 
- For Dawson, it was his first fight under Hall of Fame trainer Emanuel Steward.