San Francisco, California - The San Francisco 49ers' starting quarterback Trey Lance underwent successful surgery on his broken ankle on Monday and is expected to make a full recovery.

The 49ers revealed in a statement that Lance had a fibula fracture and a ligament disruption in his right ankle.

The 22-year-old suffered the injury in Sunday's win over the Seattle Seahawks, ending his first season as San Francisco's starter after just two games.

Lance's right leg bent awkwardly when tackled by two Seattle defenders on a designed run on the 49ers' second drive of the game. He was taken off the field after having his leg placed in an air cast.

Head coach Kyle Shanahan confirmed the fracture following his team's 27-7 victory.

"It's always tough, especially when it's a big one like that," Shanahan stated. "It's a very sad moment, but you don't have time to sit there and think about it."

"We were real happy about the win, but it was a little somber once you got in the locker room and you see him."

Lance spent his first season as the backup to veteran Jimmy Garoppolo, but was named the team's starter this offseason.

Lance took to Twitter to post a message to thank fans for their support on Monday, writing: "Truly appreciate all of the messages and prayers. Surgery was a success and I am ready to attack this rehab process."

"We will never understand why, but I trust that it's all a part of His plan. I will be back better than ever. This chapter is going to make the story even greater!"

Garoppolo replaced Lance in Sunday's win and threw for 154 yards and a touchdown, with no turnovers on 13-of-21 passing.

"I thought he did a real good job coming off the bench, made some real key throws," Shanahan said. "I'm real proud of Jimmy and how he came in and was ready for the moment and helped us get a win."

Garoppolo did not practice at all during training camp as he recovered from shoulder surgery and spent the summer the subject of trade rumors.

The nine-year veteran ultimately stayed with the 49ers. His current contract cut his 2022 salary from $24.2 million to a $6.5-million base. He can earn close to an additional $9 million in incentives.

Garoppolo has helped the 49ers to success in the past. He has a 31-14 record in 45 regular-season starts since joining the team in a 2017 trade with the New England Patriots.

Garoppolo helped San Francisco reach the Super Bowl during the 2019 season and led them to last season's NFC Championship Game. The 30-year-old athlete threw for 3,810 yards and 20 touchdowns with 12 interceptions in 15 starts in 2021.