Roberto Mancini will anxiously await the results of a scan on forward Sergio Aguero's knee after the Argentine international was carried off on a stretcher in the 8th minute of the Premier League opener against Southampton at the Etihad.

Mancini told The Guardian "We don't know at the moment, we need to wait maybe two days for the scans. We hope it's not serious but at this stage I don't know. I am worried, yes." The injury came after a tackle from Southampton's Nathaniel Clyne, but Mancini had no issues with the challenge. Aguero posted messages on twitter suggesting there was 'no significant injury' although this may just be wishful thinking and the scan results will reveal the full extent of the 24-year-old's injury. If Agüero is ruled out in the long term, Mancini said there would be no chance of Emmanuel Adebayor or Roque Santa Cruz replacing him. "At this moment definitely not," he said. If it is a serious injury, we will probably change our plans [to bring in a replacement]. Maybe he is out for a week, or three or four weeks, or after the international break."

Manchester City began their defence of the Premier League title with a tough game - one where they were very nearly defeated. David Silva had a penalty saved early on, but Carlos Tevez gave the hosts the lead just before the break. However, after half time, the arrivals of both Rickie Lambert and Steve Davis proved vital as both scored to give Southampton the lead. A panicky final 20 minutes for City ensued, but both Edin Dzeko and Samir Nasri bagged goals to secure the three points for the champions.

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