Chelsea manager Thomas Tuchel was delighted with the fighting spirit of his side as they saw off FC Porto in the Champions League.

The Blues did concede a late goal in the second leg, but progressed 2-1 on aggregate to reach the semi finals of the competition.

Tuchel knows that Chelsea cannot play perfect football every game, and was proud of their defensive resilience in both legs.

"It was a pleasure to watch them fight and be on the sideline with them to see them through," Tuchel told BT Sport.

"We accepted what was needed was a tough, tough fight. Maybe on the television it was not so nice to watch but, on the sidelines, it was a very intense game, a very fast game.

"[Porto] attack in a fluid and aggressive way. They change positions all the time. They come from behind, they overlap and you have to adapt to many movements. With every minute we did it better and better after a tough start.

"We defended well and deserved a clean sheet. We had the better chances - not a lot - but the better half chances. We could not finish it off with a goal so we had to hang in there and the guys did that. Overall we deserved to beat Porto. It was a tough 180 minutes."