Hue Jackson told reporters after the game he did not text that.
Jackson said he was texting back and forth with Watson, but he did not text "be ready" to the quarterback.
The Browns had two chances to select Watson.
Cleveland drafted Myles Garrett with the 1st overall pick, the Browns also had the 12th overall pick.
They traded the pick to the Texans, Houston drafted Watson.
After he was drafted Watson said he did not take the Browns decision personally.
"Not at all. That's their decision. That's what they feel best with. That's what they're gonna do. I give my best to Hue Jackson's team. I've always been a fan of Hue Jackson and we have a great relationship," Watson said.
Quarterback struggles continue to be a problem for the Browns.
Rookie quarterback DeShone Kizer was benched against the New York Jets on Oct. 8.
Kevin Hogan is the current starter for the Browns, he was the 4th string quarterback in the preseason.
Watson threw two touchdown passes in his first half against the Browns.