Former Manchester United interim manager Ralf Rangnick has advised Stuttgart striker Sasa Kalajdzic against moving to Old Trafford.

Rangnick manages the towering forward for the Austria national team.

Kalajdzic, 25, has been linked with a move to Old Trafford and would be available for £20m.

However, staying at Stuttgart would be better for his development, according to Rangnick.

"It is important that Sasa stays injury-free this season and trains and plays at the highest possible level," Rangnick told Sky Austria.

"If he stays in Stuttgart this season, it will not be a disadvantage for his development."