San Diego Padres closer Huston Street suffered a left calf injury last night. Here's what manager Bud Black told George Von Benko of MLB.com:

"We got some ice on it. We don't know the significance of it. As always, we'll see how it sets up overnight. But my early premonition is that it's going to put him out for a while. Hopefully I'm wrong."

Street was sprinting to cover first base on a ground ball to Yonder Alonso when he suffered the injury. He needed to be assisted off the field. Based on the looks of the injury (click the link above for the video) and quote from Black, Street could be headed to the 15-day disabled list.

San Diego's lone All-Star, Street has been nearly unhittable this season. The 28-year-old has a 0.75 ERA, 0.53 WHIP and 11.3 K/9 to go with 21 saves. He already missed a month of this season with a strained lat muscle.

The Padres acquired Street this offseason in a trade with the Colorado Rockies. Late last month, San Diego singed him to a two-year, $14 million extension with a $7 million option for 2015. Dale Thayer picked up five saves in Street's absence earlier this year.