Manchester City boss Roberto Mancini admits he hooked Gareth Barry in the first-half of their defeat to Swansea City due to a tactical decision.

Mancini made an alteration to City's approach by substituting Barry in the first half, replacing him with Sergio Aguero in a move that did appear to improve matters.

The Manager explained, "We were getting a lot of possession, and we needed another striker. It was not easy for Mario on his own, so I made the change for that reason."