Former Nigerian football star Nwankwo Kanu had $11,000 (£8,000) stolen from his bag over the weekend while travelling from Russia's Sheremetyevo airport in the capital, Moscow, to the province of Kaliningrad along the Baltic coast, The Moscow Times reports.
The Nigerian, 41, was on his way to take part in a Fifa Legends game on Sunday ahead of the World Cup tournament, which kicks off on 14 June.
Kaliningrad is one of 11 Russian cities that will host matches.
Russia's interior ministry said two baggage handlers had been detained after Kanu discovered the money missing after arriving in Kaliningrad.
“Two handlers who unloaded baggage from the London-to-Moscow flight and stole the money from the passenger’s luggage have been identified and detained,” the ministry said in an online statement.