Aberdeen interim manager Neil Warnock admits there is plenty of work to do despite watching his side ease into the Scottish Cup quarter-finals with a 2-0 victory over Bonnyrigg Rose.

Bojan Miovski’s clinical first-half double was the difference between the sides but, with captain Graeme Shinnie rested after the interval and a number of changes made on the hour mark, the second-half performance was sluggish.

Warnock said: “In the cup games, if you can get a clean sheet and get through, that’s all that matters. I’ve never really had a comfortable cup game whether the underdog or favourite.

“There was a lot of things I was frustrated at but it’s answered a few questions, and I’ve been able to give a few of the lads an opportunity. It’s all part of the process.

“I told Bojan that if he scored a couple of goals in the first half he could come off at half-time, or have a bit longer to get his hat-trick, and he wanted to play a bit longer.

“There were a lot of things I wasn’t happy with today, but I don’t want to be too impatient in a cup game. Some of the things they did today, if they did against Motherwell I would be losing my voice, but I’ll calm down a little bit and address it on the training ground.”

Bonnyrigg boss Robbie Horn was proud of his side’s efforts despite the defeat.

He said: “I thought in the first half we gave away a couple of cheap goals from our point of view.

“Obviously Miovski takes them well, but Smart Osadolor has a great opportunity at 1-0, and to be fair it’s great defending.

“I thought we looked a threat in the first half, and caused them a few issues. When the game got to 2-0 it could have got away from us, but the boys showed fantastic character and real bravery at times.

“To a man the boys were outstanding and I’m extremely proud of their efforts.”