Atletico Madrid’s Slovenian international goalkeeper, Jan Oblak, will undergo shoulder surgery later this week to repair a dislocated left shoulder. The injury came during Atletico Madrid’s 3-0loss at Villarreal on Monday. He was injured attempting to prevent Jonathan dos Santos from scoring Villarreal’s second goal and left the game in the 40th minute. Spanish media reported that hewill be sidelined for at least three months.