Arsenal target Welliton is reportedly being chased by five clubs across Europe.
The Spartak Moscow striker is reportedly being monitored by Gunners boss Arsene Wenger, but a club source from Russia told talkSPORT that Arsenal could miss out as another Premier League club prepares to declare their interest.
Italian and Spanish sides are also thought to be watching the 24-year-old forward, who has scored 48 goals in 71 Russian Premier League games.
The Krasno-belye source told talkSPORT: "Arsenal have watched Welliton for a while but there's never been any official contact. They run a risk though, as there's more than another team after him now and one of them plays in the same league."
Spartak are thought to be braced for a January move for the Brazilian, and the news of rival interest could force Arsenal into acting on their interest for the player.
Frenchman Wenger has been promised funds to spend in the January transfer window, and another striker addition at the Emirates would certainly please the Aesenal fans.
Whilst a defender and goalkeeper are thought to be the main priority for the north London club, injuries to Robin Van Persie and Nicklas Bendtner have exposed a thread-bare strikeforce at Arsenal.
With his impressive goal-to-games ration and the Gunners already watching the player, a move for Wellinton in the first month of 2011 is not out of the question for Arsenal.
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