Fast start for quarterback Siemian
Quarterbacks: Trevor Siemian started strong, completing 5-of-6 passes during his initial series with the first-team offense before fumbling a snap and then throwing an interception later in practice. Paxton Lynch overcame a slow start, avoided turnovers during full-team drills and threw a deep pass down the sideline for Emmanuel Sanders toward the end of practice.
Wide receivers: Demaryius Thomas and Emmanuel Sanders were targeted often during practice Monday, and both of the Broncos’ top wide receivers made a handful of impressive grabs, including a one-handed catch along the sideline by Thomas after he tipped the ball to himself.
Lorenzo Doss: The third-year player from Tulane, battling rookie Bernard Langley for the fourth cornerback spot, intercepted Siemian during a full-team period.