Davis, after allowing just two runs during his first four starts combined, is coming off his worst game of the year.
He was tagged for four runs and eight hits in 5 2-3 innings against the A’s on Friday in a 6-4 loss.
After posting back-to-back victories in his first two major league starts, Davies is winless in his last three outings, allowing 21 hits and nine walks in 18 2-3 innings over that span.
“A lot of factors make this really sweet,” said Johnson, who lives in Austin and had a large group of supporters in the stands. “Obviously winning the game. It’s a day I can look back on and remember. To be in your home state and have a lot of family and friends in town was great. It’s a good day to build on.”
Texas right-hander Chan Ho Park will face Atlanta on Wednesday, and is hoping to extend his personal unbeaten streak to 10 games.
Park is 5-0 in his past nine starts despite posting a 5.40 ERA, as Texas has scored 78 runs in that span.
He has given up 19 hits, six walks and 11 runs over 9 2-3 innings in his past two starts. Andruw Jones is 4-for-18 against him and Brian Jordan is 4-for-21 with a homer against his former Texas teammate.