Arsenal attacking midfielder Alex Oxlade-Chamberlain will not feature in this summer's European Championship, manager Arsene Wenger revealed.
The youngster suffered a knee injury earlier this week and will be out of action for at least two months.
Defender Per Mertesacker is also out for the season after suffering a hamstring injury.
"We have lost Alex Oxlade-Chamberlain during the week because he got a knee injury," Wenger revealed.
"He has injured his medial ligament in his right knee and will be out for six to eight weeks I think. Alex was back in full training when he picked up this new injury, which is not linked to his previous knee injuries. After that, Santi Cazorla came through well in a game for the under-21s.
"It is very sad.
"There's no chance [he will feature in the European Championship]. I had a little conversation with Alex and with our medical team. They told me yesterday that he will be back at the beginning of July.
"He was physically ready and looking sharp. He had one week's training last week, but he planned to play on Tuesday night but got injured on Monday morning.
"Everyone else should be available. We lost Per Mertesacker, the season is over for him because of his hamstring. That means Gabriel [Paulista] will come in for him."