I can easily envision both teams scoring at least five runs in a pitching matchup of Julio Teheran versus lefty Danny Duffy. 
Teheran has allowed eight earned runs in his last two starts - both against the Phillies - giving up five homers during this nine inning span. Teheran also has given up a National League-high 4.31 walks per nine innings. Bad current form and bases on balls can be a deadly combination playing in an AL ballpark where the DH is used. The Royals are swinging hot bats, too, scoring 20 runs during their last two games. 
Neither pitcher is going to be helped by the weather conditions, which call for 14-to-15 mph wind blowing out to left. That's especially bad for southpaw Duffy. 
Atlanta ranks seventh in the majors in homers and eighth in runs. They have the fifth highest slugging percentage versus lefties in the National League. 
The Royals have the sixth-worst bullpen in the majors with a 5.05 ERA. 
Kansas City has been a solid Over play. The Over has cashed in 17 of the Royals' past 24 games for 71 percent.