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Barca target Ibrahimovic

Defending as a unit will be vital to thwarting Paris St Germain talisman Zlatan Ibrahimovic in tonight's s Champions League Group F showdown, Barcelona coach Luis Enrique said.

Sweden striker Ibrahimovic, who spent a season at Barca in 2009-10, returned from injury and struck twice in PSG's 2-1 Ligue 1 victory at home to Nantes at the weekend and is expected to lead the line for the French champions at the Nou Camp.

"We are talking about a top player," Luis Enrique said. "If he is at his normal level he is very difficult to stop," added the former Barca and Spain midfielder.

"I always like to transmit to the team the idea that we defend as a unit.

"If we manage to work collectively and work in a block and pressure well then the ball won't get through to Ibra."

Barca and PSG are through to the last 16 and the French side need only a draw to secure top spot and avoid a fellow group winner in Monday's draw for the knockout round.