Reading midfielder Mikele Leigertwood is relishing the prospect of facing former club Sheffield United on Saturday.
The 30-year-old enjoyed a memorable season at Bramall Lane in 2006/07 before making a move to Queens Park Rangers.
Leigertwood believes the Blades will provide a stern test when they arrive at the Madejski Stadium for their FA Cup fourth round encounter.
And the Reading player insists it would be foolish for anyone at the club to underestimate their opponents because they are in League One at the moment.
"They are a big club, definitely," Leigertwood said. "They are very passionate up there about their football. You are either a red or a blue.
"They were good times for me at United. I met a lot of good people up there. Unfortunately I had two injuries which kept me out for a couple of months at a time, which was quite disappointing, but when I played I was doing quite well.
"It will be a tough game on Saturday. They haven't been doing as well in their league of late but all form goes out of the window in FA Cup games so it should be an exciting game."
What will be the outcome in the match Reading vs Sheff Utd?