Barcelona full-back Dani Alves is a top transfer target for both Manchester United and Manchester City, who according to the Daily Mail are ready to take advantage of his contract situation to launch a cut-price summer bid.
Alves remains very much the first choice right-back at the Camp Nou, although his deal runs out next summer and there is no sign of Barca chiefs offering fresh terms.
The 30-year-old has reportedly fallen out with a number of Barca team-mates and is considering a lucrative move away from La Liga, alerting both City and United to the prospect of landing a genuine world-class defender at a knock-down price.
Barca haven't made up their minds over the Brazilian international's future and may yet decide to keep a key player through the final year of his current contract.
United in particular are searching for quality additions in all positions, with right-back no exception thanks to defensive deficiencies in a difficult campaign under David Moyes' stewardship.
City would also love to provide Pablo Zabaleta with the kind of intense competition for his place that has been sorely lacking this season, with a wage structure to match the demands of a proven commodity in Alves.
The World Cup will come before any decision from Alves or Barca over a summer switch, with United and City both expected to monitor the situation closely with a view to a concrete bid.