Rapoport and Mike Klis of 9News added more context:
This comes after Rapoport reported the two sides were working on a deal and "motivated to make this happen."
Broncos general manager and president of football operations John Elway said in February that Keenum would have to alter his contract that had $7 million in guaranteed money remaining to stay in Denver.
"There has to be an adjustment of the contract," Elway said, per Klis. "And that's going to be up to him. We're going to do whatever he wants to do. We're going to work with him, and it's up to him for what he would like to do."
The latest report sparked a number of reactions:
James Palmer @JamesPalmerTV
Elway was willing to do whatever Keenum wanted. If he had is preference, he'd have Keenum back with an adjustment to his contract and be in a backup role, but the Broncos were never going to stop Keenum from seeking a trade himself or finding a trade partner themselves. https://t.co/4jOHGZ4Aqg
Denver signed Keenum to a two-year deal after he led the Minnesota Vikings to the NFC Championship Game with 22 touchdown passes and seven interceptions in the 2017 season. However, he was unable to replicate that success in his first year with the AFC West team, completing 62.3 percent of his passes for 3,890 yards, 18 touchdowns and 15 picks during a 6-10 effort.
Still, he gives Washington another short-term option with Alex Smith's future in doubt.
Keenum will likely compete with Colt McCoy, who appeared in three games for Washington in 2018 and completed 63 percent of his passes for 372 yards, three touchdowns and three interceptions.