Manchester United and Liverpool will be contested in their apparent pursuit of Porto striker Jackson Martinez, after it was reported that mega-rich Russian club Anzhi Makhachkala are prepared to meet the Colombian's release clause.

According to newspaper Izvestia, both Manchester United and Liverpool are interested in Martinez, although the spending power of Anzhi may prevent either of the Premier League duo from completing a deal for the forward.

Anzhi are reportedly prepared to meet the buyout clause written into Martinez's contract with Porto, which stands at £34 million, and the interest of the Russians surely places Manchester United and Liverpool further down the running to sign the player.

Martinez has been in sensational form during his first season in European football, and has scored 23 times in 25 league appearances since his transfer from Jaguares to the Estádio do Dragão.

It is unclear if the interest of Manchester United and Liverpool is genuine, although the latter have been linked with a swoop to bring Martinez to Anfield for some time, even prior to his transfer to Porto.

Manchester United, meanwhile, are on Tuesday being credited with a desire to sign Martinez's compatriot Radamel Falcao from Atletico Madrid during the summer transfer window.

Spanish newspaper Marca claims Manchester United are prepared to spend £45 million to bring Falcao to Old Trafford.

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