He gained the attention of Rennes scouts during his time here and joined the Bretagne club's training center in 2006.
He received his first call up to the senior squad by manager Guy Lacombe on 14 February 2009 in a league match against Nancy appearing on the bench in a 1–1 draw.
[2] He joined second division club Sedan on loan for the entire 2009–10 season, in order to receive some playing time.
[3] In his competitive debut with Sedan, he scored the club's second goal in their 2–0 win over Caen in the Coupe de la Ligue.
[citation needed] In July 2013, Lasimant impressed Leyton Orient manager Russell Slade with two goals in their 7–0 friendly victory over Chelmsford City.