Chelsea fullback Wallace is set to sign with Gremio today.
Wallace will join Gremio on-loan for the New Year after a difficult two years in Europe.
The fullback has struggled for minutes while on-loan with Inter Milan, Vitesse Arnhem and Carpi.
Wallace, says TMW, penned new terms with Chelsea last month.
He is joining Gremio in an effort to make Brazil's Olympics squad this summer.