Patrick Fitzgerald O'Bryant was born on June 20, 1986 in Oskaloosa, Iowa. O'Bryant attended Blaine High School in Blaine Minnesota, He was named Second Team All-State following a senior season in high school in which he averaged 18.8 points, 9.5 rebounds and 3.4 blocks per game while leading Blaine to a 24-4 record. He went on to attend Bradley University where he majored in food and nutrition. His freshman season at Bradley, he appeared in 27 games, 26 of which were starts and averaged 10.0 points, 7.4 rebounds and 2.78 blocks in 23.1 minutes per game and he led the team in FG percentage at 55.7%.
He appeared in 25 games with 21 starts in his second season at Bradley, averaging 13.4 points, 8.3 rebounds and 2.88 blocks in 25.7 minutes per contest and shot 55.2%. He helped lead the Braves to the Sweet 16 of the NCAA Tournament where he averaged 14.7 points and 10.3 rebounds in three tournament games against Kansas, Pittsburgh and Memphis. Despite playing just two seasons at Bradley, he left the school ranked third on the Braves all-time blocked shots list (147 -- 10th all-time in Missouri Valley Conference) and second in career field goal percentage.
His breakout performance at the tournament caught the eyes of NBA scouts and he left school after two seasons and entered the NBA Draft. The Golden State Warriors made him the 9th pick in the 2006 NBA draft. Just 3 months after he was drafted, he was diagnosed with a fracture in his right foot. He was placed in an immobilizing boot on the injured foot and missed six weeks of training camp. He played sparingly in the 2006–07 season.
He spent part of the season in the D-League with the Bakersfield Jam. He appeared in 25 games for the Jam, averaging 12.0 points, 9.6 rebounds, 1.4 assists and 2.88 blocks in 29.6 minutes. After O'Bryant was recalled from the D-League, Warriors head coach Don Nelson had critical words for him:
"I told him if he goes down to the D-League and isn't a dominant player, there should be red flags all over the place, and he should be the first to notice. He's not only not dominating, he's not playing very well. He's a long-term project. I really liked him the first week of training camp, but I assumed there would be great progress. He hasn't gotten better one bit."
In the 2007-2008 season, he appeared in 16 games, averaging 1.9 points and 1.3 rebounds in 7.4 minutes of play for the Warriors. He was on the inactive list 42 times and had 24 DNP-CD's for the season. It was very evident that Nellie didn't care for his young center and they didn't pick up his option allowing him to become a free agent after the season.
On July 11, 2008, O'Bryant signed a 2-year, $3 million contract with the Boston Celtics. He immediately started working out with Celtics' big man coach Clifford Ray, even following him to his Big Man's camp that he holds with Robert Parish in Florida every year. O'Bryant simply did not fit in with Nellie's run and guy style of play. Hopefully he will find the Celtics' system more to his strengths and he will have a break out season. At 7’0”, 250 lbs. with a 7’6” wingspan and a 9’5” standing reach, the 22 year old still has a lot of potential and the Celtics are hoping that Clifford Ray can help him develop all of it.