With Sammy Watkins (foot) and Zay Jones (knee) sidelined during OTAs, Holmes has been seeing plenty of action while demonstrating smooth route running and good field awareness, John Murphy of BuffaloBills.com reports.
Watson isn't sure if he'll be the Week 1 starter, ESPN.com's Jovan Buha reports. "I have no idea," said Watson. "That's up to the coaching staff. My job is to come in and learn the system, learn the organization and play my part."