Manchester United and Portsmouth are both tracking Serbia star Milos Krasic.
The 24-year-old is currently with Russian giants CSKA Moscow - but he is attracting major interest from around Europe after a string of highly impressive performances.
The right-winger moved to Russia in 2004 after they snapped him up from Vojvodina - where he was already captain.
He has since become an integral part of the CSKA set-up and one of the most highly-rated forwards in the Russian league.
United are well versed with the Russian scene having signed, coincidentally, Krasic's international team-mate Nemanja Vidic from Spartak Moscow.
Now Krasic is catching the attention, and both United and Pompey are understood to have watched him in midweek.
The scouts were dispatched to Vienna to catch Serbia's World Cup qualifier against Austria and they will have surely been impressed as Krasic turned in a memorable display as he scored the opener in a 3-1 win.
Paris Saint Germain, Hamburg, Werder Bremen and Porto are already hot on Krasic's trail and CSKA are understood to be looking for close to £8million for the player who still has three years left on his contract in the Russian capital.
CSKA are anxious for Krasic to stay and will look to offer him fresh terms before the transfer window opens in January - if not it seems the Serb flyer could spark a transfer scramble, and whether United or Pompey will be amongst the bidders remains to be seen.