The Sun says he faces a grilling from West Ham bosses after his late return from the African Nations Cup.
The madcap Mali striker arrived in London on Wednesday - 48 hours after he was due to report back for the Hammers.
Maiga played in his country's 3-1 third place play-off win over Ghana on Saturday.
The rest of Sam Allardyce's squad is on a six-day warm weather training trip to Dubai.
But West Ham want to find out whether Maiga went AWOL or there was a mix up by the Mali FA over his return flight.