Bale was partly responsible for Pavlyuchenko's goal.
His recent 'threat factor' meant that Ferreira marked him extremely tightly to avoid being caught on the back-foot with Bale on full sprint. This meant that Ivanovic had to slot into the RB position to cover while Ferreira was upfield. The result of this was Mikel slotting into the empty CB position left by Ivanovic, who didn't deal with Pavlyuchenko at all after he picked up the ball.
His recent 'threat factor' meant that Ferreira marked him extremely tightly to avoid being caught on the back-foot with Bale on full sprint. This meant that Ivanovic had to slot into the RB position to cover while Ferreira was upfield. The result of this was Mikel slotting into the empty CB position left by Ivanovic, who didn't deal with Pavlyuchenko at all after he picked up the ball.