Aaron Ramsey injury woes perplex Arsene Wenger: 'There is an underlying reason - but we haven't found it'

The Arsenal midfielder is out yet again with a hamstring complaint

Aaron Ramsey could face another lengthy spell on the sidelines (GETTY IMAGES)

Arsene Wenger believes there is an underlying reason for Aaron Ramsey's continuing injury travails - but Arsenal are still to find it.

Ramsey's promising career has been punctuated by injury.

The Wales midfielder was a substitute for Tuesday night's Premier League defeat of Leicester, but was replaced after only nine minutes due to a hamstring problem.

"We haven't found the underlying reason," said Wenger, speaking ahead of the holders' FA Cup clash with Middlesbrough on Sunday.

"There is an underlying reason that is medical or bio-mechanical, because he's a guy who is serious, works hard.

"There's no obvious reason why he should have muscular injuries."

Wenger played down the severity of the problem which is expected to keep Ramsey out for a fortnight and insisted Arsenal's training methods are sound.

"It's not a major injury. It's a grade one," he added.

"We have individualised training. I don't think that is any special case that has been neglected."

PA