<P> On August 22, Nolan officially declared O'Sullivan as the starting quarterback for the 2008 season . He became the first 49ers quarterback to throw for over 300 yards in a game since 2004 when he completed 20 of 32 passes for 321 yards and a touchdown in a 33--30 win over the Seattle Seahawks on September 14 . O'Sullivan completed 16 of 28 passes for 256 yards, one touchdown and two interceptions in a 29--17 loss to the New York Giants on October 19 . He was also sacked six times and fumbled four times, but only lost one fumble . Afterwards, Nolan said that the play of O'Sullivan in the Giants game was "disappointing". On October 26, O'Sullivan, after throwing an interception that was returned for a touchdown, was benched in favor of Shaun Hill by new head coach Mike Singletary during the second quarter of a game against the Seattle Seahawks . O'Sullivan committed three turnovers in total during the Seahawks game, the interception and two fumbles . </P> <P> At the time of his benching, O'Sullivan and Brett Favre were tied for the league lead in interceptions with 11 and O'Sullivan led the league in fumbles with 11 . He also led the league in total turnovers with 11 interceptions and six fumbles lost . O'Sullivan, by himself, had committed more turnovers than any other NFL team at the time of his demotion . The Denver Broncos, New York Jets and Cincinnati Bengals were tied for the second most turnovers with 16 . On October 27, Singletary named Hill the starting quarterback . Hill then started the final eight games of the season . O'Sullivan completed 128 of 220 passes for 1,678 yards and eight touchdowns with 11 interceptions during the 2008 season . The 49ers won two out of the eight games that he started . O'Sullivan, despite only starting eight games, was sacked 32 times, which made him tied for eighth in the NFL with Joe Flacco in number of times sacked . </P> <P> An unrestricted free agent in the 2009 offseason, O'Sullivan signed a two - year contract with the Cincinnati Bengals in March 2009 . He was active as the Bengals second quarterback for every regular season game during the 2009 season . He played in three games, completing four of eleven passes for 40 yards with no touchdowns or interceptions . He was also active, but did not play, in the team's AFC Wild Card Game . He was released by the Cincinnati Bengals on September 5, 2010 . </P> <P> After O'Sullivan was cut by the Bengals, the San Diego Chargers claimed him off waivers on September 6, 2010 . He was inactive as the Chargers third quarterback for six games . He was released by the team on October 20, 2010 . In November 2010, he had workouts with the Miami Dolphins and Detroit Lions . </P>

Nfl player that's been on the most teams