A weekly examination of the San Francisco 49ers' quarterback play.Rewind: Colin Kaepernick had one of his best games of the season in a 31-17 win at the Tennessee Titans. He was 13-of-21 for 199 yards passing, and he ran for 68 yards on 11 carries. He ran the read-option five times, which was the most he has all season. Kaepernick was 11-of-13 passing as the 49ers jumped out to a 24-0 lead in the third quarter.Fast-forward: Kaepernick will face the Jacksonville Jaguars in London on Sunday.