Seattle Mariners starting pitcher James Paxton (back) had his back stiffen up on him on Sunday after a 35-pitch bullpen session on Saturday. Manager Scott Servais is confident that the issue is minor and that Paxton can return from the disabled list to make a start in the next five to six days. Paxton has been the team's best starter this year and is 8-4 with a 3.70 ERA, 1.09 [...]