Isaac Cossier

19-Year-Old DefenderD
Lille
Ligue 1
DOB 11/30/2006
Extends contract through 2030
DLille
July 17, 2026
Cossier has signed a new contract with Lille running through June 2030, the club announced.
ANALYSIS
Cossier joined Lille's academy at 15 and signed his first professional contract in the summer of 2022, before he had even turned 16. He spent the 2025-26 season on loan at Le Mans FC in Ligue 2, where he was voted the league's Young Talent of the Season by followers of the competition after a campaign that highlighted his defensive solidity. Cossier is a left-footed centre-back known for his explosiveness and reading of the game and he's now back at Lille full-time after that loan experience.
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Set Pieces / Depth Chart
LilleLille 2025 Set Piece Crosses and Shots
H.Hakon Haraldsson
R.Romain Perraud
Felix Correia
G.Gaetan Perrin
E.Ethan Mbappe
C.Calvin Verdonk
M.Matias Fernandez-Pardo
M.Marius Broholm
O.Olivier Giroud
S.Soriba Diaoune
N.Noah Edjouma
B.Benjamin Andre
O.Osame Sahraoui
H.Hamza Igamane
I.Isaac Cossier
# of Team Set Piece Crosses and Shots
69
17
52
0
50
6
44
0
36
8
28
0
30
6
24
0
26
7
19
0
26
9
17
0
12
0
10
2
7
3
3
1
5
0
0
5
3
1
2
0
2
0
2
0
1
1
0
0
1
0
1
0
1
1
0
0
0
0
0
0
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#9 D
LilleLille
  1. Nathan Ngoy
  2. Romain Perraud
  3. Chancel Mbemba
  4. Tiago Santos
  5. Loun Srdanovic
  6. Calvin Verdonk
  7. Alexsandro
  8. Ousmane ToureGTD
  9. Isaac Cossier
More Fantasy News
Returns to Lille after promotion
DLille
June 5, 2026
Cossier will return to parent club Lille after helping Le Mans FC secure historic promotion to Ligue 1 during his season-long loan spell, the club announced.
ANALYSIS
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Inks extension before loan
DLe Mans
September 2, 2025
Cossier has signed a contract extension with Lille until 2027 before being sent on loan to Mans FC for the 2025/26 season, his parent club announced.
ANALYSIS
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