First glance at the top 2020 free agents

Dak Prescott and Jadeveon Clowney highlight the list of potential free agents for 2020.

20. Anthony Castonzo, OT, Indianapolis Colts

Charles LeClaire-USA TODAY Sports

He’s started all 128 games he’s played in during his nine seasons with the Colts. It’s unlikely Indianapolis will let him leave. But if he does hit the market, he’ll be the best offensive tackle available.