Aston Villa manager Unai Emery has confirmed the reasons for making a half-time substitution against Ajax.
The Spanish head coach took off centre back Pau Torres, as they secured a 0-0 draw in the Netherlands.
Villa will now head to Villa Park next week to try and progress to the last eight of the Europa Conference League.
"He had a small injury two weeks ago," Emery explained about Torres to reporters.
"We did a plan with him. I think tactically as well we needed to change something.
The plan was to play 45 minutes with Pau Torres."
