The Memphis Grizzlies have signed Canadian guard Xavier Rathan-Mayes to a 10-day contract, according to Shams Charania of Yahoo Sports. The native of Scarborough, Ont., has averaged 16.6 points, 7.2 assists and 6.4 rebounds per game in 39 contests with the G League’s Westchester Knicks this season. He joins fellow Canadian Dillon Brooks on the Grizzlies’ roster.