SALE boss Alex Sanderson was pleased with the hard-fought, shorthanded win but wants his side to show more self discipline.
“We're going to get caught out at some point, it does need to improve,” Sanderson said. “I thought the discipline generally was good but it's the yellow and red cards.
“We're such a physical team, a big, upright team and we tend to give a lot of shots around the neck. This was slightly different in that it was a tip-tackle from Rob du Preez, who's not a dirty player.
“If you get everything right in terms of your systems, discipline doesn't come into it. If we had got our exit right, our ruck right, the red card wouldn't have happened.”
Gloucester coach George Skivington said: “The lads were bringing the physicality, we were organised and I think them losing a player knocked us off our stride. The effort and physicality was there, but I was disappointed how we managed it.”