Tottenham Hotspur and West Ham United are both reportedly interested in signing Juventus striker Mario Mandzukic in January.
Spurs have struggled for goals in the absence of the injured Harry Kane in recent weeks, failing to score a single one from open play in their last six outings in all competitions.
West Ham, meanwhile, are just one point clear of the relegation zone following a poor start to the season.
Mandzukic faces competition from Gonzalo Higuain and Paulo Dybala at Juventus and is understood to be considering a move away in order to guarantee more regular first-team football.
Calciomercato reports that Spurs and West Ham have both been alerted by the Croat's potential availability, but the London duo could face competition from Paris Saint-Germain.
Mandzukic has made 11 Serie A appearances for the Italian champions this term, scoring twice.