Marquis Daniels (born January 7, 1981 in Orlando, Florida) was signed by the Mavericks as a free agent on July 29, 2003.
Daniels attended Auburn University where, as a senior he averaged 18.4 points and 6.2 rebounds while leading the Tigers to the Sweet 16 of the NCAA Tournament. He was named second team All-SEC that season and was selected the team's MVP in each of his final three seasons.
Although not drafted coming out of college, Mavericks coach Don Nelson had his eye on Daniels and signed him shortly after the draft. After an impressive showing with Dallas' summer league team, he was invited to training camp and made the squad. In his rookie campaign he appeared in 56 games averaging 8.5 points in 18.6 minutes. Those numbers earned him a spot on the NBA's All-Rookie team.
Both his scoring and minutes rose in his second season as the 6'6 guard saw action in 60 games while averaging 9.1 ppg. In his third, and final, year as a Maverick, Daniels reached double digits in scoring averaging 10.2 points in 28.5 minutes. He helped the Mavs to the playoffs all three of his seasons in Dallas appearing in a total of 36 postseason games.
On July 6, 2006, Daniels was traded to the Indiana Pacers for Austin Croshere.
In his first season with the Pacers, Daniels saw action in only 46 games before missing the final 25 games of the year with a troublesome left knee. He came back strong in the '07-'08 year playing in a career-high 74 games while averaging 8.2 points-per-game.
His breakout season however was 2008-2009 when he enjoyed career highs in minutes played (31.5), points (13.6) and rebounds (4.6). Despite the impressive numbers the Pacers did not resign him after the season and Daniels signed as a free agent with the Boston Celtics in the summer of 2009. He is still a member of the Celtics.
Off the court, Daniels created the Q6 Foundation which works to fight sickle cell anemia and assist children living with the disease.