Key groups

Two-time Texas Open winner Zach Johnson is alongside 2016 winner Charley Hoffman and Matt Kuchar

(1:40 p.m. ET Thursday). Sergio Garcia is out with Si Woo Kim, who lost in a playoff last weekend in the RBC Heritage, and Billy Horschel (1:50). Chappell headlines Friday’s play alongside Pat Perez and Xander Schauffele (1:40) And Jhonattan Vegas is playing with

2015 Texas Open winner Jimmy Walker and 2010 winner Adam Scott (1:50).