Sierra coming to Shea?

Adam Rubin at The NY Daily Newswrites about Rubin Sierra and his ambitions to join the Mets:

Ruben Sierra is prepared to join the Mets if his ailing mother's condition improves soon. Sierra hit .179 with four RBI in 28 at-bats for the Twins before his July 10 release. The goal would be for the 40-year-old, switch-hitting outfielder to work into playing shape in the minors, join the Mets in September and be available for the postseason roster - assuming he can prove himself during the minor-league stint. "Ruben is her only available child and he is taking care of her. If her condition does not improve soon, it is possible that Ruben will not join the Mets," said agent Chuck Berry, who plans to be at Shea today to visit client Julio Franco.