San Antonio star Tim Duncan claims Australian centre Andrew Bogut is getting away with too much illegal play in their torrid NBA playoffs duel.
Bogut was lauded by his coach Mark Jackson for his 18-rebound, physically dominant performance in Golden State's 97-87 overtime win over San Antonio on Sunday, but Duncan believes the referees are giving him a free pass at times.
The win tied up the western conference semi-final series 2-2, with the crucial game five of the best-of-seven series in San Antonio on Tuesday (Wednesday AEST).
"He (Bogut) is a big guy," Duncan told reporters on Monday.
"He's playing very physical and is getting away with a lot of stuff."
The battle between 213cm tall, 118kg Bogut and 211cm, 116kg Duncan, a two-time NBA MVP and 14-time All Star who plays forward and centre, has been one of the highlights of the series.
The Warriors' opponents in the first round of the playoffs, the Denver Nuggets, also complained about Bogut's physical play, telling reporters in post-game press conferences he was hitting them with illegal screens.
Bogut said Duncan has not complained to his face.
"He just talks to the ref, he doesn't talk to me," Bogut told a San Francisco radio station on Monday.
Bogut, however, is full of respect for Duncan, who he describes as the best centre in the NBA.
"He's number one," Bogut said.
"Duncan will go down as one of the best players to play all time."
Duncan had 19 points and 15 rebounds on Sunday, but his points came from 7-22 shooting, with Bogut's one-on-one defence credited for Duncan's off shooting night.