Hi Aleksandr, You would want to choose "Athletic Squad" or "Athletics Squad", but not "Athletic's Squad". Athletic Squad = Athletic squad or a squad of athletic people Athletics Squad = A squad for athletics Athletic's Squad = The athletic's squad (this is not technically incorrect, but the usage is a bit unusual) I hope this helps! Greg

My opinion is that athletic's squad is wrong because athletic is not a noun. It can't be in possession of anything.