Ruben Rochina in action for Rubin Kazan against CSKA Moscow
Rochina could be available before the close of the transfer window due to Rubin Kazan's ongoing financial problems.
The 26-year-old, who joined the Russian side in summer 2016, has not been paid for several months and could follow ex-team-mate Yann M'Vila by requesting for Fifa to terminate his contract to allow him to become a free agent.
A number of clubs have been alerted to Rochina's possible availability as they look to strengthen their attacking options before the close of the transfer window.
Ruben Rochina playing for Blackburn Rovers
West Ham's attacking options have been badly hit by injuries, with Andy Carroll facing up to three months out after undergoing foot surgery, while Manuel Lanzini and Marko Arnautovic face spells out with hamstring injuries.
With doubts also surrounding the futures Javier Hernandez, Diafra Sakho and Andre Ayew, West Ham are considering bringing in a new forward and Rochina is thought to figure on their wanted list.
Promotion hopefuls Fulham are also in the market for a new striker this month as they look to maintain their push for the Premier League and they are keeping tabs on Rochina.
Girona are also ready to offer former Spain youth international Rochina a return to his homeland as they look to strengthen their squad before next week's transfer deadline
Rochina moved to Blackburn from Barcelona in January 2011 and scored 11 goals in 54 appearances, although almost half of them were from the substitutes' bench.
Rochina spent the second half of the 2012-13 and 2013-14 seasons on loan at Real Zaragoza and Rayo Vallecano respectively, before he made a permanent return to Spain in the summer of 2014 when he signed for Granada.
Have something to tell us about this article?