The San Francisco 49ers didn’t characterize cornerback Jason Verrett’s ankle injury as “minor,” as was reported Wednesday.Verrett, who sustained a sprain, is on the same rehab timeline as rookie defensive end Nick Bosa, who is expected to miss the preseason and be re-evaluated before the start of the regular season, coach Kyle Shanahan told reporters Thursday.San Francisco general manager John Lynch earlier in the day called Bosa’s ankle injury “significant.”Cornerback K’Waun Williams also is expected to miss the preseason because of arthroscopic knee surgery.Verrett underwent an MRI exam after being injured in Wednesday’s practice.Verrett joined the team on a one-year, $3.6 million deal in March. A 2015 Pro Bowler, he has played in just 25 games through five NFL seasons, including just five games over the past three seasons with the Chargers due to knee and Achilles injuries. He did not play in 2018.San Francisco starts the regular season at Tampa Bay on Sept. 8.
