The 6-2, 310-pound LeRibeus has 12 games of NFL starting experience under his belt. The former third-round pick of the Washington Redskins out of SMU in 2012 played five games at guard in his rookie season including the regular season finale when Alfred Morris rushed for a career-high 200 yards.
In 2015, LeRibeus was moved to center and started 11 games when Kory Lichtensteiger was sidelined with a neck injury. He was in the starting lineup for the team's four-game win streak at the end of the season when Washington captured the NFC East crown.
He was re-signed by Washington in 2016, but was released at the end of the preseason. ESPN's Adam Caplan reported that the Eagles worked out LeRibeus back in October.
Williams spent his rookie year on the Chargers' practice squad after leading the team with 10 catches for 132 yards in the preseason. He signed with San Diego as a rookie free agent following the 2016 NFL Draft. The 6-2, 200-pound Williams was named All-Pac-12 honorable mention after his senior season at Washington State in 2015. He had 75 catches for 1,040 yards and 11 touchdowns in his final year with the Cougars. He finished his Washington State career ranked second all time in school history in receiving yards (2,889), second in touchdown catches (30) and third in receptions (192).