Both moves Sunday were expected, with Mathis and Thomas still recovering from season-ending injuries.
Four different teams were represented in the Firestone Fast Six.
Practice begins Sunday afternoon and is open to the public.
He was pulled over and arrested after going 107 miles per hour on Tuesday afternoon.
Coach Bill Belichick stonewalled questions about deflated footballs for the second straight day.
Walker will stay on for the final three races, which ends Aug. 30 in Sonoma, California.
Indiana Fever ended the New York Liberty’s five-game winning streak with a 84-72 victory Wednesday night.
This will be his first appearance on CNN.
Coaches say while deflated footballs have advantages, the risk involved doesn’t add up.
Michael Moore is resigning effective Aug. 14.
INSIDE: Read Brady’s full statement about his Deflategate suspension being upheld.
Welter said she never dared entertain the thought of coaching in the NFL.
What’s next? Winning a championship, of course.
In the past 12 months, Robinson has played for three different teams.