BARCELONA, Spain (AP) — Barcelona goalkeeper Marc-André ter Stegen said Monday he will undergo knee surgery to prevent future injuries.

He said doctors suggested the tendon surgery as a “clean-up as there were some irritations earlier this season.”

“It’s a proactive intervention in order to prevent and prepare for the future,” the goalkeeper said on his Instagram account.

He said he will need “some weeks” to recover and return to full strength.

“I’m calm and positive about the situation,” he said. “I will come back soon.”

Ter Stegen’s final match of the season was the 8-2 loss to Bayern Munich in the quarterfinals of the Champions League on Friday in Lisbon.

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