They went into their game against the Cincinnati Bengals with just three wide receivers because they were counting on Lloyd's availability.
Football executive John Elway said on his radio show Monday that the Broncos chose to promote a running back from their practice squad Saturday rather than a wide receiver because Lloyd had practiced Friday for the first time since being hurt in the opener and seemed OK.
"We thought Brandon was going to be OK. It was quite the surprise to us -- and I'm sure to him, too -- that it wasn't feeling very well on Sunday afternoon," Elway said on his radio show on KDSP-FM in Denver.
Lloyd, on the other hand, practiced Friday before coach John Fox told him to back off halfway through the workout as a precaution.
"We really thought he was going to be fine," Elway said. "The thought process was, 'OK, do we bring up a wideout or are we going to bring up a running back?' And on Saturday, we knew Knowshon was not going to go, so we really thought Brandon was going."
Elway said the oft-injured Royal was scheduled for an MRI on Monday.
Copyright 2011 by The Associated Press