Saido Berahino's heat map shows the West Brom striker has not had the most influential of evenings...

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Here's that second Albion change. On comes Stephane Sessegnon for Claudio Yacob. Attacking midfielder for defensive midfielder. Had to be done.

Barry Fry is up on his feet smashing his hands together quicker than one of those old-school rattlers. Why? Because Martin Samuelsen has just made a mug of James McClean with a wonderful showboat of a flick down the right. Then shanks his cross out for a goal-kick...

Better hands from Ben Foster. The Albion keeper is well behind an ambitious effort from Lee Angol from 25 yards. Worth a try...

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Theo Elliott: Go on, Peterborough! They deserve it too, they've been all over West Brom. Lovely stuff!

Tony Pulis has had enough. He has told Stephane Sessegnon to take off his tracksuit and do some stretches. He's coming on.

Martin Keown
Former Arsenal defender on BBC One

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"We said in the first half that Jon Taylor was setting an example for team-mates and he is leading the way again. West Brom defender James Chester has to be tighter and forcing him to shoot earlier. We complemented Chester for a couple of early challenges but he won't be happy with that. The keeper has to do better as well."

Should Ben Foster have done better? His centre-back Jonas Olsson reckons so. Those two are having an almighty dust-up, shouting and pointing at each other.

In fairness to the Albion keeper, there's a slight deflection off James Chester which perhaps catches him out. But I'm being generous.

Martin Keown
Former Arsenal defender on BBC One

"Peterborough just haven't got their shooting boots on. If they did have it would almost be the complete performance."

Peterborough raced out of the traps like Lewis Hamilton in the first half. They're not quite as quick off the grid after the break, more like Jenson Button now. Another half chance falls their way as Shaquille Coulthirst shimmers into space on the edge of the Baggies area, bending one just wide.

Claudio Yacob is one of those players who might as well just have his name written in the notepad before kick-off. Bet he was born kicking people. 

The Albion midfielder hacks down a Peterborough player on the edge of his area to earn his almost-mandatory yellow. But he escapes further punishment as Jon Taylor's curling effort lands softly in his grasp.

Peterborough get this show back on the road. Another rapid start will have been the message from their gaffer Graham Westley.

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Posh manager Graham Westley on BBC One: "If you're drawing games, you're not doing enough to win it. It's about finding those fine margins."

High expectations.

JacomoJmo Jackson: Believe me us baggies fans feel the same about these awful performances. Pulis has turned us into such a snorefest, embarrassing.

PressOfficePeter: Barry Fry is a football legend. Why can't ALL football clubs have a Barry Fry?

Sureditch: Peterborough making West Brom look like West Brom in that first half.

Peterborough midfielder Jack Collison on BBC One: "We will be very pleased. We started well and the only disappointment will be we haven't got that all important goal.

"I'm sure we will still be happy, full of confidence and coming out in the second half still thinking they can win this."

Barry Fry is still high on life. Or something. The Peterborough director of football reckons his team would be "3-0 up and going home if they had Lineker or Shearer up front". Soz Bazza, we won't even flog those two for a set of trackies and three new size fives.

Alan Shearer
Former England captain on BBC One

"For 30 mins, Peterborough won every tackle and every second ball and wanted it more. West Brom were under huge pressure. 

"Tony Pulis was going mad at his team because it was nowhere near good enough. As the half wore on West Brom came into it but, other than 10 minutes at the end of the half, Peterborough were the better team."

West Brom looked like the League One side, not Peterborough, in those opening 25 minutes or so. At one stage the attempts at goal tally resembled the score in a snooker match when Ronnie O'Sullivan is in the zone - 9-1 in the favour of the home side. But Albion battled back to even up that statistic by the break.

Hoof it Albion: Saido is our only outlet? Where's Rondon at though? It's like we're playing with 10 men tonight.

Johnathan Kelly: The most interesting thing about this game is that advertisement that's going by every now and again for the robotic lawnmower.

Chris P: Peterborough will do well to score against this 7-1-2 formation.