Birmingham City have settled on a fee with Rubin Kazan for on-loan striker Obafemi Martins.

The Daily Mail says Blues have agreed a £5m fee with Russian side Rubin Kazan to make the loan move of Nigeria striker Martins permanent.

Martins, 26, joined Birmingham last month and City can take up the option at the end of the season.

Birmingham have already paid a loan fee of £500,000 for Martins who cost Rubin around £15m when he joined them last summer from Wolfsburg.

 Click here for the No1 coverage of all the gossip and transfer news around Birmingham City.