Neil Warnock has joked he will give Huddersfield Town boss David Wagner tips on how to beat fierce rivals Sheffield Wednesday in the play-offs.
Wagner was conducting his post-match interviews after his side's 3-0 home defeat to Warnock's Cardiff City when he was interrupted by the Yorkshire-man.
The Sheffield United legend was filmed knocking on the door as Wagner answered questions, telling the Huddersfield Town boss he was in a rush to go.
Warnock then bursts through the door before wishing his Huddersfield Town counterpart the best of luck as they prepare to take on Wednesday in the play-off semi finals.
The 68-year-old then tells Wagner he'll "tell you how to do them in a minute" before adding "come on the Terriers".
Wagner's Huddersfield host Wednesday in the first leg of the play-off semi finals on Sunday, May 14, with the reverse fixture three days later.