Forlan flew into Madrid on Wednesday and will delay his holidays to be available for Atletico's two-legged Europa League qualifier against Stromsgodset. Atletico hosts the Norwegian team on Thursday with the return leg next week.
The 32-year-old Forlan acknowledges he is ''a bit tired'' after starring in Uruguay's 3-0 win over Paraguay on Sunday, but could be a substitute on Thursday. If Atletico progresses, Forlan will take a break before the next round later in August.
Forlan was part of the Atletico team that won the Europa League in 2010.