Siemian completed 10 of 14 passes for 75 yards, with no touchdowns and one interception in Saturday's preseason game against the 49ers.
Siemian came out strong on Denver's opening drive, completing five of six passes for 55 yards to set up a 19-yard touchdown run by C.J. Anderson. It was all downhill from that point forward, with a hideous pick-six serving as the final nail in the coffin. Siemian somehow didn't lose any ground, as Mark Sanchez lost a pair of fumbles and produced just three points on four drives. Head coach Gary Kubiak hasn't announced a starter for the all-important third preseason game.