Manchester United have made Mario Mandzukic their top striker target, report The Sun.
Louis van Gaal is a big fan of the 29-year-old, describing him two years ago as the 'ultimate team player'.
Mandzukic signed for Atletico Madrid only last summer, and has scored 20 goals in 43 games. Just 12 of those came in La Liga however, and the Spanish side are said to be open to offers.
The Metro reported at the end of May that Tottenham Hotspur are considering a bid for the Croatian, as they explore options to support Harry Kane.
A separate report in The Mail has an alternate view on Mandzukic and Manchester United, writing that instead of the Red Devils pursuing him for a transfer, it is Atletico who are seeking to offload him, and have sought out the Premier League side as potential suitors.
Mandzukic has a contract until 2018 with Atletico, but The Mail's report claim he has fallen out with coaching staff, and is also being pursued by Wolfsburg, AC Milan and Roma.
The Croatian international scored 48 times in 88 games for Bayern Munich, but left after the German giants signed Robert Lewandowski from Borussia Dortmund.
United have an advantage over Tottenham as they have Champions League football on offer next season; and could be viewing him as a replacement for Dutchman Robin van Persie whose importance to the side has waned over the past season.