The contract for Nomar Garciaparra expires after this season, but the injured Cubs shortstop apparently is confident he will remain with the team. As he did last off-season, Nomar is expected to sign a one-year 'prove-it' contract or a multi-year deal that pales in comparison to what Boston offered him before the 2004 season. The California native and his wife?retired soccer star Mia Hamm, who was born in Selma, Ala.?are having a luxurious home built in north suburban Winnetka, sources say.