Browns sign second-round pick Jackson, three others
Cleveland has signed nine of its 10 picks, with training camp beginning Wednesday. Receiver Travis Wilson, a third-round selection out of Oklahoma, is the only one unsigned.
Jackson, a linebacker out of Maryland, was the Atlantic Coast Conference's defensive player of the year last season. Williams was a Butkus Award semifinalist last year despite starting six games in four years at Miami.
Sowells started 27 games at left tackle in college but is expected to play guard.
Harrison finished his senior year at Washington State with a rushing average of 172 yards per game, third-best in the nation.
Copyright 2006 by The Associated Press