The Browns signed free agent tight end Alex Smith, a third round pick of Tampa Bay out of Stanford in 2005.
Smith, 6-foot-4 and 258 pounds, has also spent time with the Patriots and Eagles. Last season in Philadelphia, he started five games and played in 16, catching three passes for 25 yards.
In his career, the Denver native has totalled 132 catches for 1,277 yards and 11 touchdowns. In 2005, he led NFL rookie tight ends with 41 receptions for 367 yards and two scores.
The Browns waived wide receiver Aaron Valentin and tight end Troy Wagner.