As time going, Denver Broncos quarterback competition has become increasingly interesting.

On Thursday, coach Gary Kubiak told reporters Trevor Siemian would be starting the preseason against the San Francisco 49ers.

Kubiak said that he hoped Mark Sanchez to spend more time on the first team offensive, meanwhile, he was not sure the third preseason game starting candidates. Backup quarterback Paxton Lynch will debut in the second half to have sufficient time to the performance.

Sanchez has said that he outperformed Trevor, but the Broncos know Sanchez is a clearly advantages and disadvantages of mixed player.