Mark Bunn has fond memories of the last time he faced Peterborough United, but the stopper has described United's trip to London Road at the weekend as a 'must win' game.

Bunn believes maximum points from Saturday and next week against Plymouth are crucial as the Blades look to gain some momentum ahead of entering the business end of the season:

"We must be looking to take six points from the next two matches, so it is a massive game as we look to get in a good position to get in the play-offs.

"It won't be easy though and Peterborough have won a couple of home games recent so we know it will be tough, but we go there in confident mood."

The on-loan Blackburn man endured a tough spell in his first few months at the Lane, but that all changed against Posh last November and Bunn says saving penalties is something he relishes, admitting it is equivalent to a striker scoring a goal:

"I saved a penalty from George Boyd and that was the turning point in my season. From then I started feeling more confident and my performances reflected that, so it was a massive game for me personally.

"I remember watching his run up and thinking it was going to my left. That save gave me a huge boost and I started to believe in my ability again after going through a real tough spell.

"To a goalkeeper, saving a penalty is just like scoring a goal, an unbelievable feeling. I always watch DVD's of the opposition's penalties before every game and that helps when you then have to face one.

"There is an element of luck involved and you can't really practice them in training. I just like to give the taker the ball and try and stare them down, but I don't know if that helps or not to be honest.

"I try and set myself a 50% success rate, but you aren't expected to save them. Despite everything being in the attackers favour you still have to believe that you can save it."