In his senior year in Albany, Siggers ranked eighth among the conference leaders in scoring with 14.2 points and third in free throw percentage with 82.9 percent.

[1] On August 11, 2007, Siggers started his professional career with the Danish team Bakken Bears, signing a one-year deal.

[6] On April 6, 2013, Siggers recorded career-highs of 34 points and 8 steals, shooting 13-of-17 from the field, along with four rebounds and two assists in a 95–76 win over Saint-Vallier.

[8] On April 21, 2013, Siggers parted ways with Lille to join SIG Strasbourg for the rest of the season, signing as an injury cover for Gerald Fitch.

[15] On May 8, 2017, Siggers recorded a season-high 30 points, shooting 10-of-13 from the field, along with four rebounds, seven assists and five steals in a 95–85 win over Maccabi Ashdod.

[16] On May 11, 2017, Siggers banked in a three-pointer at the buzzer and scored 27 points to give Gilboa Galil an 87–85 victory over Maccabi Tel Aviv.

On March 10, 2018, Siggers recorded a season-high 28 points, shooting 8-of-14 from the field, along with five rebounds, three assists and three steals in an 87–90 loss to Hapoel Tel Aviv.

On November 18, 2018, Siggers signed with the Goyang Orions of the Korean Basketball League, replaced JeQuan Lewis.