Siya Kolisi will miss several weeks of competition with Racing 92. The double South African world champion underwent surgery on the thumb of his right hand on Tuesday.

Racing 92 must absolutely win on Sunday when they host Toulon at Paris-La Défense Arena (9 p.m.) The 32-year-old third row has played 12 matches (12 starts) since his arrival in November, a few days after a second world champion title acquired on French soil. He has only had four successes in 12 appearances for 8 defeats.