Boston Red Sox right-hander Tanner Houck’s attempt to come back this season is over. Manager Alex Cora said Saturday that Houck will undergo Tommy John surgery. An All-Star last season, the 29-year-old Houck went on the injured list in mid-May with a right flexor strain after going 0-3 with an 8.04 ERA in nine starts. He’s the third Boston starting pitcher to suffer a season-ending injury. Hunter Dobbins tore the anterior cruciate ligament in his right knee covering first base last month and Kutter Crawford underwent right wrist surgery.