Julian Alvarez left Atletico Madrid training before the session ended on Saturday. That has thrown his place into question for the team's La Liga game at Real Sociedad. The forward's early exit raised concern at the club's training ground. Spanish reports say medical staff are checking his condition. Real Sociedad host Atletico this weekend in San Sebastian. If Alvarez is ruled out, coach Diego Simeone could be forced to change his attack. No formal update has arrived from the club. His availability for the match has not been confirmed.