Cheksea, Manchester United and Everton are among the clubs maintaining interest in Stuttgart striker Sasa Kalajdzic.
The 6ft 7ins Austria international is available for around £15million and has also been discussed by Bayern Munich this summer.
Kalajdzic has scored 24 goals in 57 games for Stuttgart and has 15 caps for Austria. He is on a list for United and Chelsea which also includes Benjamin Sesko at Red Bull Salzburg, who are reluctant to sell this summer.
Manchester United, Chelsea and Everton are keen on Stuttgart striker Sasa Kalajdzic (above)
United are working to bring in another forward regardless of whether Cristiano Ronaldo remains at the club beyond the transfer window.