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Richard Keogh's late header sealed the points for Derby County against Preston

Teenager Mason Mount scored the first goal and created the second as Derby County maintained their dominance over Preston with victory at Pride Park.

On-loan Chelsea midfielder Mount, 19, gave the Rams the lead after latching on to David Nugent's cross.

Both goalkeepers made key saves, with the Rams' Scott Carson twice denying Callum Robinson and Preston's Declan Rudd preventing Mason Bennett from doubling the lead.

However, Rudd could not keep out Richard Keogh's header from Mount's corner 12 minutes from time.

Preston have not won a league game at Derby since September 2002.

The blend of youth and experience in Frank Lampard's Derby side was typified by the output of their two goalscorers.

The dynamic Mount claimed his third goal in six appearances in all competitions, while 32-year-old skipper Keogh was excellent at the back alongside another Chelsea youngster, Fikayo Tomori.

Preston have now gone four league games without a win.

Derby County manager Frank Lampard on match-winner Mount: "He can be top, top level because he's 19 and plays with ability and quality. Technically he's brilliant but also his work-rate shouldn't go unnoticed.

"He's so quick to leave midfield to go and press people, whether it be defenders or deep-lying midfield players, which makes you the all-round midfield player.

"At some stage he will go back to Chelsea. I don't want to think about that now, but when he does I think he's going to be a contender."

Preston manager Alex Neil said: "The first goal was going to be a big factor in the game and I thought it came at a stage when we were on top.

"For the first 40 minutes of the match I was really pleased with how we performed, but from that point onwards our quality in terms of breaking on them wasn't as good as it should have been.

"At the moment we are struggling to score goals. If we want to try and hit the heights of last year we need to turn potential into quality on the pitch and we need to make sure that going forward we've got more of a cutting edge."