It will be master against apprentice at Old Trafford on Saturday afternoon as Manchester United take on Middlesbrough.
Boro boss Aitor Karanka was Jose Mourinho's assistant at Real Madrid, but tomorrow they will lock horns in the Premier League.
It's a game you can hear live and exclusively on talkSPORT 2 from 3pm on Saturday, and these are the stats and facts you need to know ahead of the big kick-off...
* Manchester United are unbeaten in seven Premier League matches against Boro (W4 D3), last losing to them 4-1 in October 2005.