There's not much you can tell Jaap Staam about Jimmy Floyd Hasselbaink.
The two played with each other for Holland, against each other back home and in the Premier League - and the Reading boss says he's now done his homework on JFH the manager at QPR.
"I know him because I played with him in the national side and played against him at the beginning of my career when he was still playing in Holland.
"We don't call or speak with each other, but every time we meet up the relationship is very good. But we don't keep in touch," Staam said.
Both have a lot in common even if they're not pals outside the game.
There's only four months between the 44-year-olds, and both arrived as Championship managers within seven months of each other.
The Reading man remembered Hasselbaink the player - he should.
It was a JFH goal for Chelsea that deflected off Staam for a Blues lead and eventual win over Manchester United 2-1 in the 2000 FA Community Shield.
Staam says he can't remember the goal, but he remembers the player.
"He had great physique and decent pace. He was very straight forward and had a great shot," he added.
"He was difficult to defend at times.
"But eventually if you know a player very well and you know what he's doing you can make it harder for him and that's what you need to do as a manager when you play a side like that."