Bayern Munich manager Jupp Heynckes has praised the ruthless nature of his side as they beat Arsenal 3-1 in the first leg of their Champions League clash.

The Bundesliga side capitalised on some poor defending from the Gunners as Toni Kroos, Thomas Muller and Mario Mandzukic fired Bayern to victory.

He said: "Arsenal allowed us a few things in their defence but we are in astonishing form and can punish even the smallest mistakes of the opponent.

"At times it was quite difficult for us, we had to work hard but even when they were putting pressure on us, we coped well."

The second leg of the tie takes place on March 13 at the Allianz Arena.