San Francisco 49ers quarterback Trey Lance impressed during Sunday’s preseason game against the San Diego Chargers. The rookie completed 8 of 14 passes for 102 yards and two touchdowns, leading the 49ers to a 15-10 win. After a pass intended for Mohamed Sanu was picked off at the nine-minute mark in the second quarter, Lance led his offense to two touchdown drives during his final three series. Trailing 10-2, Lance found Sanu for a 5-yard touchdown with 12 seconds left in the first half, capping a one-minute, 75-yard drive. On his final drive, Lance connected with Travis Benjamin on a 16-yard …