August 4, 1984
|2014||Greek League Finalist|
|2015||Polish Supercup Winner|
|2015||All-EuroCup Defensive Player of the Year|
|2015||Polish League Finalist|
|2016||French ProA Finalist|
|2006/2008||New York Knicks, USA|
|2008/2010||Los Angeles Clippers|
|2011||Jiangsu Dragons, China|
|2011/2012||Los Angeles D-Fenders, USA|
|2012/2013||Maccabi Ashdod, Israel|
|2013||Guaros de Lara, Venezuela|
|2013||Sutor Montegranaro, Italy|
|2014/2015||Turów Zgorzelec, Poland|
|2015/2016||Strasbourg IG, France|
|from 2016||Lokomotiv Kuban, Russia|
Collins attended Simon Gratz High School in Philadelphia, as did NBA players Aaron McKie and Rasheed Wallace.
Scouts were impressed by Collins' defense and team play. He totaled 89 steals for his 2005–06 season at Temple University, primarily by stepping into passing lanes. He also averaged 16.9 points per game, 4.7 rebounds per game, and 4.0 assists per game.
New York Knicks
In 52 games played during the 2006–2007 season, Collins averaged 4.5 points per game, 2.0 rebounds per game, and 1.6 assists per game. However, in the final ten games of the season, when he played a substantially higher number of minutes than previously in the season, he averaged 14.7 points, 6.3 rebounds, 5.8 assists and 1.9 steals.
On December 16, 2006, during the fourth quarter of a game between the New York Knicks and Denver Nuggets, Collins committed a hard foul against Nuggets guard J. R. Smith. The ensuing confrontation resulted in a brawl, after which ten players were ejected. Collins received a six-game suspension.
He played a career-high 51 minutes on April 7, 2007 against the Milwaukee Bucks, scoring 19 points in addition to 12 rebounds, 8 assists, and 5 steals.
Los Angeles Clippers
On November 21, 2008, Collins and Zach Randolph were traded to the Los Angeles Clippers for Tim Thomas and Cuttino Mobley.
Los Angeles D-Fenders
Collins became a member of the Los Angeles D-Fenders on December 28, 2011.
On January 17, 2011, Collins signed a one-year contract with the Turkish League team Bornova Belediye. In November 2012, he joined the Israeli team Maccabi Ashdod In May 2013, he signed with Guaros de Lara of the Venezuelan League. On August 26, 2013, he signed with Sutor Montegranaro of the Italian League.
On January 1, 2014, he signed a contract with the reigning back-to-back Euroleague champions, Olympiacos of the Greek League, until the end of the season. Over 14 Euroleague games in which he played as a bench player, he averaged 2.1 points, 1.6 rebounds and 1.1 assists per game.
On September 26, 2014, he signed a contract with the Polish team Turów Zgorzelec, following the departure of Christian Eyenga.
For the 2015–16 season, Collins signed with Strasbourg IG.
On July 27, 2016, Collins signed with PBC Lokomotiv Kuban for the 2016–17 season.