In the 2009–10 season, Biedriņš appeared in only 33 games, starting 29, and was limited to 23.1 minutes per game, his lowest since his second season in the league (2005–2006). Injuries played a big role, as he was derailed with back and groin ailments that made him miss weeks at a time before he finally had groin surgery on March 10, ending his season. Biedriņš' free-throw percentage had dropped from 62% in 2007–08 to 55.1% in 2008–09; in 2009–10, he shot an appalling four-for-25 (16%). His other numbers dropped precipitously as well—five points, 7.8 rebounds and 1.3 blocks per game after career highs in all these stats in 2008–09. Additionally, Warriors coach Don Nelson repeatedly criticized Biedriņš for his lack of intensity and aggressiveness in his time on the floor. Biedriņš capped of the off-season by criticizing the team during an interview in his native Latvia.