Mullins is not in the lineup for Tuesday's game versus the Cubs.
Right-hander Cade Horton is toeing the rubber for the Cubs, but the left-handed-hitting Mullins will begin the festivities on the bench. Mullins is slashing just .188/.287/.291 in 40 games since joining the Mets. Brandon Nimmo is getting his first start of the season in center field, while Starling Marte will patrol left field.