03/18/2010 05:12 am ET Updated May 25, 2011

Cliff Lee To Seattle Done Deal: Mariners Give Up Prospects

Cliff Lee is indeed headed to the Seattle Mariners in a blockbuster trade involving the Philadelphia Phillies. per the Seattle Post-Intelligencer. Rumored for days, the deal became official this afternoon.

The Mariners are giving up three minor-league prospects in the deal -- pitchers Philippe Aumont and Juan Ramirez and outfielder Tyson Gillies.

More to come soon.