From Steven Gerrard to Neil Warnock - what opposition mangers have said about Marcelo Bielsa and Leeds United's 'spygate' saga

Steven Gerrard - Rangers

"It's been a surprise.

"We have to protect the integrity of the game. I'm certainly someone who believes in fair play and respect.

"I think Leeds have overstepped the mark in this case. But it's not of my business thankfully and it doesn't involve my team.

"I felt for Frank of course but it is what it is.

"It's not something I have experienced personally but I think you've always got to be on your guard.

"In football it is natural that you'll always try and get any advantaged you can. You always take things into consideration to try and protect your team, tactics and game plan.

"It's not way to send some other people to training grounds. There's not a law in place and until there is a law in place it could happen again. I think the people that be need to adapt the rules."

Frank Lampard - Derby County

"Ready for my presentation - we do analysis too by the way!"

“I haven’t seen it, I’ve heard about it, obviously.

"It’s a funny one for me because I don’t really want to speak too much. I spoke a lot at the weekend.

“He gave an impression of himself. I haven’t seen Pep Guardiola give that, I haven’t seen Jurgen Klopp give that, (Mauricio) Pochettino give that.

"They do it behind closed doors, definitely, but they don’t do it to the public.

“It’s probably a nice eye-opener for the fan to see it, because most of these things are done behind closed doors.

"They’re done everywhere. There’s no amazement from anyone who works in football, they won’t be amazed in the slightest. It’s par for the course.

"It is what it is now. We all know what’s been happening across the board.

“It’s certainly a League issue now. It’s our League, it’s every team, so it’s up to them to decide what goes from now."

Chris Wilder - Sheffield United

"He (Bielsa) comes a different culture and we've encouraged the introduction of foreign coaches and managers. He's from somewhere with different rules.

"Is it ethical? Possibly not. Is it something we would do? No. But there are other parts of the game that upset me more, parts that aren't being addressed.

"He's done it, he's a maverick and it's part of this weird and wonderful world we call football. Diving about, going down, rolling about and then getting straight back up again when you've got someone booked or everyone dashing around a ref; those things really do my coconut in.""He must have a crystal ball to know that Dean Henderson is going to try and dribble it out and then fall over," Wilder said on Leeds Uniteed's victory at Bramall Lane last month.

"If he knew we were going to miss chances, first-half, he must be a better manager than me. It's been blown up. It's like, maybe, going to a film star's house. You're allowed to walk around it but not in it. Perhaps that's a silly example but you know what I mean." "Players diving about and getting people booked, rolling about and getting booked, maybe that needs sorting out first. If somebody rang me up this morning and said 'this is Swansea's team' then I'm not going to say 'no'. But it's the act of doing it." "He has stoked the fire and created a lot of debate on this. It’s something that I wouldn’t do, and possibly the majority of English managers wouldn’t, but he has done it.

"I think it’s been over exaggerated. I think everyone is trying to find that edge, and sometimes they do it in a way that doesn’t really sit right with players, managers and supporters. But they are prepared to do it.