The San Francisco 49ers suffered a blow to their offensive line depth on Saturday. Swing tackle Shon Coleman went down four snaps into a preseason game versus the Dallas Cowboys. Coleman was carted off the field and into the locker room with an air cast on his right ankle. Indications point to him missing an extended period of time.

San Francisco trotted out career journeyman Willie Beavers to fill in for Coleman.

A third-round pick in 2016 by the Cleveland Browns, the 49ers traded for Coleman shortly before the start of the 2018 season for a seventh-round selection. Though he didn't play any game for the 49ers in 2018, he started their preseason opener at left tackle with incumbent starter Joe Staley resting.

Coming into the game, Coleman appeared poised to be the top swing tackle on a shallow 49ers offensive tackle group.

Article Continues Below
More San Francisco 49ers News
San Francisco 49ers head coach Kyle Shanahan against the Arizona Cardinals at State Farm Stadium.
ESPN gives 49ers, Bears, Patriots best chance of biggest turnaroundDouglas Fritz ·
San Francisco 49ers head coach Kyle Shanahan, right, confers with defensive coordinator Robert Saleh during the teamís rookie minicamp.
49ers rumors: How World Cup could cost San Francisco $37 millionJackson Stone ·
NFC defensive end Nick Bosa of the San Francisco 49ers (left) with brother and AFC linebacker Joey Bosa during the Pro Bowl Skills Challenge at Nicholson Fieldhouse
How long 49ers’ Nick Bosa thought Joey Bosa would team up with himJaren Kawada ·
San Francisco 49ers running back Christian McCaffrey (23) runs with the ball against Buffalo Bills cornerback Taron Johnson (7)during the first half at Highmark Stadium.
Insider gives ‘bouncy’ Christian McCaffrey, 49ers updateLorenzo J Reyna ·
San Francisco 49ers offensive tackle Trent Williams (71) blocks Seattle Seahawks defensive end Leonard Williams (99) in the third quarter at Levi's Stadium.
Trent Williams’ on field return will have 49ers fans hypedLorenzo J Reyna ·
San Francisco 49ers head coach Kyle Shanahan next to a silhouette of an American football player with a big question mark emoji inside. There is also a logo for the San Francisco 49ers.
Rising San Francisco 49ers rookie turning heads in 2025 OTAsBen Strauss ·

Sixth-round pick Daniel Skule will likely receive an uptick in snaps after Coleman's injury. Skule-Coleman was a training camp battle for the swing tackle role.

The 49ers dealt with unfriendly injury luck last season. By the midway point of 2018, their starting backfield of Jimmy Garappolo (quarterback) and Jerick McKinnon (running back) were on injured reserve with torn ACLs. In 2019 training camp and preseason, their luck hasn't changed.

No. 2 overall pick Nick Bosa suffered a high ankle sprain shortly into training camp; it'll sideline him for the entirety of the preseason. Freshly signed cornerback Jason Verrett also went down with a high ankle sprain (albeit, less minor) for the 49ers.

Coleman's injury is just another chapter of an unlucky start to the offseason. Hopefully, for the players' and the team's sake, that will change soon.