Former US Open champ Juan Martin Del Potro will kick off his 2011 season down under in Sydney. The Argentine received a wildcard from the tournament.
The former world no. 4 currently is ranked 259 in the world after missing most of last season due to surgery to his right wrist. He came back late this year in Bangkok and Tokyo but lost in the first rounds of both tournaments.
Sydney is played on Jan. 9-15. He joins Marcos Baghdatis and Sam Querrey among the players who have committed to the event.