Warrick won an NCAA championship in 2003 and blocked a potential game-tying three-pointer in the title game.

He played for eight seasons in the National Basketball Association (NBA) with the Grizzlies, Milwaukee Bucks, Chicago Bulls, Phoenix Suns, New Orleans Hornets and Charlotte Bobcats.

Warrick then embarked on an international career and played in China, Turkey, Australia, Greece, Puerto Rico, Lebanon and Israel.

[6] Although the Orange missed the NCAA Tournament, Warrick played a key role in Syracuse's run to the NIT Final Four.

Warrick finished with 12 points, going 2-of-12 from the free-throw line, including four key misses in the final minutes of the game.

[7] Warrick started all 35 games in his sophomore year and was named the Big East Most Improved Player after more than doubling his scoring average from the previous year (6.1 to 14.8 ppg) and improving his rebound average by 3.7 boards per game (4.8 to 8.5 rpg).

In the Sweet 16 against Auburn and the Elite 8 against Oklahoma, Warrick averaged 14.0 points and 6.5 rebounds, and was named to the All-East Regional team.

[8] With 1.5 seconds left and the score still the same, Kansas' Michael Lee was wide-open from the baseline for a potential game-tying 3-pointer.

But Warrick used his long arms to block Lee's attempt and Syracuse captured its first ever national championship.

[11] After Carmelo Anthony declared early for the NBA draft, Warrick became the team's top scoring option.

[2] Syracuse advanced to the Sweet 16 and in the second-round game against Maryland, Warrick scored 26 points and added nine rebounds.

Warrick pumped-faked in the lane, and, while flat-footed, leapt over the outstretched arms of Latimore and emphatically slammed the ball with one hand.

[18][10] In March 2023, Syracuse University officially retired his #1 jersey alongside his teammate Gerry McNamara.

He came in third place, behind New York Knicks guard Nate Robinson and Philadelphia 76ers forward Andre Iguodala.

[24] On December 9, 2006, against the Milwaukee Bucks, Warrick recorded career highs in points (31) and rebounds (13) and made all nine of his free throw attempts in a 100–94 loss.

[31] The deal was completed as a sign-and-trade, which resulted in Phoenix giving up their 2011 second round pick to Chicago.

In November 2013, Warrick worked out for the Sichuan Blue Whales of the Chinese Basketball Association (CBA)[36] but was subsequently not signed.

He was temporarily replaced in the line-up by Garrett Jackson on October 29,[41] returning from injury on November 22 to face the New Zealand Breakers.

[43] Warrick helped lead United to the minor premiership after finishing the regular season in first place on the ladder with an 18–10 win–loss record.

On February 24, 2016, Warrick signed to play in Greece, with Olympiacos of the Greek Basket League and Euroleague, for the rest of the season.