On-loan Portsmouth striker Theofanis Gekas will review his future at the end of the season after his agent revealed he is 'unhappy' at Fratton Park.
Gekas joined Pompey from Bayer Leverkusen in January but has yet to make an appearance on the South Coast.
The Greece international criticised interim Portsmouth manager Paul Hart in March, and reports on Tuesday suggest he could be set for a move to Zenit St Petersburg at the end of the season.
Gekas' agent, Paul Kutsoliakos, said in the Daily Mirror: "It's too early to talk about my client's future as the summer transfer window is far away.
"We have not been officially approached yet by Zenit. But Gekas is not happy in Portsmouth."