Mets considering call-ups for Mauricio and Baty amid expanded September rosters

Mauricio showing promise at bat in Triple-A, including .860 OPS, 23 HRs, 24 SBs.
Mauricio has struggled defensively but is improving at second base.
Baty has struggled in majors but performed well in Triple-A since being demoted.
Mets can expand roster from 26 to 28 players in September.
Mauricio and Baty under consideration for call-ups to bolster roster.