Man United are back in the hunt for Kroos

Manchester United are back in the hunt for Real Madrid star Toni Kroos.

And that could raise more question marks about Louis van Gaal's future at Old Trafford.

United tried to sign Germany midfielder Kroos from Bayern Munich two years and former Red Devils boss David Moyes believed it was a done deal.

But Van Gaal pulled the plug when he took over in the summer of 2014 and Kroos ended up going to Real Madrid.

However, Mirror Sport understands that United are interested again which begs the question as to where that leaves Van Gaal and whether he would be in charge next season.

Jose Mourinho has been widely tipped to take over this summer if Van Gaal does leave with the veteran Dutch coach under pressure to finish in the top four and win the FA Cup.

Former Chelsea boss Mourinho wants the United job but Van Gaal has one year left on his current contract and has made it clear he wants to stay.

However, United looking at summer targets who might not fit into Van Gaal's plans may raise alarm bells.

Kroos, 26, started against Manchester City in the Champions League but has been linked with moves away from Real Madrid and he has said in the past he would like to play in English football.

United are also in the hunt for a new striker with Everton's Romelu Lukaku and Borussia Dortmund superstar Pierre-Emerick Aubameyang on their hit-list.