Considering those returning players who are probables for this year's 25-man roster, we go into the year w/a 24 y/o as the one with the most continous service time on the team and only 4 who were Mets prior to opening day '05: 2008 NYM SeniorityPLAYER1st NYM Game Pedro Feliciano*Sept 4, 2002Jose ReyesJune 10, 2003Aaron HeilmanJune 26, 2003David WringhtJuly 21, 2004Pedro MartinezApril 4, 2005Carlos BeltranApril 4, 2005Ramon CastroApril 7, 2005Billy WagnerApril 3, 2006Carlos DelgadoApril 3, 2006Endy ChavezApril 6, 2006John MaineMay 2, 2006Orlando HernandezMay 26, 2006Mike PelfreyAugust 8, 2006Oliver PerezAugust 26, 2006Moises AlouApril 1, 2007Joe SmithApril 1, 2007Scott SchoeneweisApril 3, 2007Jorge SosaMay 5, 2007Jose CastilloJuly 31, 2007 * time not continous, wasn't on 2005 team.