Darren Ferguson may have got a fright during his pre-match analysis on FA Cup opponents Stoke City.
But he insists Rovers are relishing the chance to pit their wits against one of the Premier League’s form sides in Saturday’s third round tie.
City have recently been tagged ‘Stoke-alona’ for their slick new style under boss Mark Hughes - a former teammate of Ferguson’s at Manchester United.
The Potters arrive at the Keepmoat Stadium having claimed the scalps of Manchester City, Manchester United and Everton in December.
But Ferguson says his squad will embrace the challenge in front of a near sell-out Keepmoat Stadium crowd.
“I watched a re-run of Stoke against Everton on the television before the game at Southend last weekend,” said Ferguson.
“I was planning on watching it for an hour, but I had to turn it off after half an hour because it was getting a bit scary to be honest!
“They’re a good team, make no mistake.
“Mark’s done a fabulous job and they’ve got a big squad but it’s a good challenge for our lads to look forward to.
“It’ll be a different kind of challenge, totally different,” he added.
“It’s a game in which I might be able to try one of two things differently but it’s up to us to go for that cup shock.
“That’s what the competition is all about - and you would think there will be an upset or two on Saturday.”
Rovers said this week they are expecting a 12,000-plus crowd this weekend.
The tie is the first time Rovers have hosted Premier League opposition since 2011, when they drew 2-2 with Wolves in the FA Cup third round before losing 5-0 in a replay.
Rovers are advising people to buy tickets online via their website or by calling the ticket office on 01302 762576.
Tickets are priced as follows: adults £15, seniors £10, 17-21 £8, 12-16 £5, 11 and under £1.