Former England star Steve McManaman says Newcastle United must be careful with their transfer spending.

The Magpies became the wealthiest club in the world after a consortium including Amanda Staveley, Mehrdad Ghodoussi and the Saudi Public Investment Fund bought out Mike Ashley.

McManaman told Horseracing.net: "Newcastle just have to be very careful. Everybody in the world knows that. Every agent will be trying to push their players into Newcastle.

"Gareth Bale would be very interesting, of course he would, as he's got a year left on his contract and he's a super player.

"The only thing is whether he wants to come back to this country as he loves life in Madrid. Eden Hazard is now on the wrong side of 30.

"And you have to be very careful with Isco and Luka Jovic. I don't think Isco is a Premier League player, he just lacks that little bit of pace.

"Marquee signings to me are the likes of Kylian Mbappe and Erling Haaland. You've got to be careful that you don't pay older players lots of money and then they don't turn up."