Diagne, who is from France, is a longtime practitioner of Sanshou, a Chinese form of kickboxing, and has won six titles in the sport.
[1] Diagne made his professional mixed martial arts debut on May 15, 2009 at Strikeforce Challengers: Evangelista vs. Aina against Kaleo Kwan.
Diagne then fought at Strikeforce Challengers: del Rosario vs. Mahe on July 23, 2010, facing off against Caros Fodor and lost via unanimous decision.
At Strikeforce Challengers: Beerbohm vs. Healy on February 18, 2011, Diagne fought Aaron Franco and lost via knockout in the first round.
Diagne left Strikeforce with a 1-3 record, and proceeded to go on a four-fight winning streak, before losing his last fight to Brandon Ricetti on June 28, 2014, via rear-naked choke.