Rio Ferdinand has hinted that Manchester United could be eyeing a move for Spanish star Saul Niguez.The Atletico Madrid star has been tipped for a high profile move this summer with a switch to Old Trafford one of a number of options.The 25-year-old has a release clause of £135million and could be tempted by a move to one of the worlds' biggest clubs.Niguez sparked excitement in the football world when he took to Twitter to tease fans over a potential move by posting: "New club, I'll announce it in three days".It remains to be seen what the announcement will be, with some suggesting that his ‘new club’ could be a reference to the world of esports.But that hasn’t stopped Ferdinand from sparking excitement among the Manchester United fans.Retweeting Saul Niguez’s post, Ferdinand simply posted a pair of eyes to indicate that supporters should watch this space.

Manchester United supporters will certainly be hoping for a busy summer in the transfer market as Ole Gunnar Solskjaer looks to bolster his squad.

Several high profile signings could be needed to put themselves back in contention for the Premier League title, especially with Paul Pogba's future up in the air.

The French midfielder has regularly been linked with a move away from Old Trafford, and it seems likely that a final decision will be made on his future in the North West over the summer.

GIVEMESPORT'S Phil Spencer says...

While a move for Saul Niguez is far from close, it could be exactly what fans have been waiting for at Old Trafford.

The midfielder is a hugely talented individual with experience of playing at the highest level - something which Manchester United could benefit from.

A deal - should it be on the cards - would be a huge financial commitment though, and that could be a potential stumbling block, especially with their place in next season's Champions League in doubt.

With the Premier League season set to resume in the coming weeks, United are currently in fifth place in the table and three points behind Chelsea in fourth.

That could play a big part in their hopes of signing players such as Saul Niguez.