Emirates club rocked by injury.
Arsenal’s pre-season plans have been rocked by injuries to forwards Theo Walcott and Conor Henderson three weeks before the new campaign starts.
Both players have flown home from Germany to begin treatment and will be a huge blow to manager Arsene Wenger.
Walcott, 22, missed yesterday’s training session with an ankle injury but his boss suggests it is not as serious as first thought.
“Theo went home early and was due to have an MRI on Tuesday,” said Wenger to the club’s website.
“It is an old ankle injury from the end of last season. It’s one that comes and goes.
“We need some more investigation because sometimes he’s completely free of it and sometimes it affects him. But we had to send him back because he couldn’t practice anymore.”
Henderson, 19, is a more serious problem and will be out for a minimum of six months after damaging his cruciate ligaments.
He twisted his knee in the final seconds of the 2-1 win over Cologne on Saturday and was stretchered off.
The Irishman flew home that night for tests, which revealed a lengthy spell on the sidelines.
“Conor has a knee injury and it looks as if it is a cruciate,” Wenger added. “That means unfortunately that he will be out for six months at the very least.”