The Colorado Rockies will chase after a flickering playoff spot without All-Star third baseman Nolan Arenado, who was placed on the injured list with a sore left shoulder.
Arenado has been hampered recently by inflammation in his AC joint, along with a bone bruise, and the team elected Monday to shut him down. Manager Bud Black said surgery isn't required but Arenado will need about a month of rest.
Black said there wasn't one play in particular that led to Arenado's injured shoulder, but it was more of a cumulative effect. It has been bothering Arenado at the plate, where he's hitting just .