Crewe Alex made it four wins out of five with a 2-0 victory at Carlisle.
Callum Cooke opened the scoring for the Railwaymen.
Ex-Crewe striker Shaun Miller was then sent off six minutes after the restart for a bad challenge on Ollie Turton.
Jordan Bowery then wrapped up the points soon after slotting home from close range.
Crewe boss Dave Artell told the club's official web-site: "The lads have delivered again. They have stood up to the physical side of Carlisle's game and when they had six forwards on at the end of the game, they still didn't create a clear chance.
"The back four and goalkeeper have now achieved four clean-sheets out of five but as I've said, its a real team effort. They have all worked their socks off again and got their rewards. The centre-halves were excellent again and got the head on the balls going into our box and Zooms and Turts defended the crosses well. To a man they have done it again and they deserve the rewards and the plaudits.
"George Cooper's individual brilliance has created the two goals. The first goal was a great goal. He has lifted it over everyone to find Callum and it is not an easy finish. When they come like that you can snatch at it but he showed great technique to score.
"Coops has then shown courage to go at the defender for the second goal. He has got at him, gone past him and rolled it over the six yard box and Jordan couldn't miss. He showed everyone how good he is again.
"It was another good team performance and to score two goals and keep another clean-sheet makes me a happy manager. But we won't be getting complacent. I said to them we have won four games out of the last five and that's terrific but that doesn't make us Brazil or Germany. We have got along way to go, there is another game next week and we'll see where that takes us.
He added: "I said I wanted to go out to win the last nine games, that's two down and we move on to Cambridge next weekend."
The Railwaymen are now 16th in the table.