Jesse Hahn injury update: Won't pick up baseball for at least a month

Oakland Athletics starting pitcher Jesse Hahn will not pick up a baseball for at least a month, he informed beat reporters before Friday's game against the Minnesota Twins. Hahn received a second opinion from physicians in Los Angeles:

After a second opinion in LA, Jesse Hahn won't throw a ball for a month.

— Susan Slusser (@susanslusser) July 17, 2015

Hahn says he received a second opinion on elbow and will be shut down for more than a month. Ligaments intact but dealing with inflammation.

— Jane Lee (@JaneMLB) July 17, 2015

Melvin said Hahn will have a PRP injection Tuesday and there's no timetable for his return.

— Trevor Hass (@TrevorHass) July 17, 2015

It was initially hoped that Hahn would be shut down for just two weeks before beginning a rehab program to return before season's end, but even that is in doubt. Hahn has made 16 starts for the A's and has a 3.35 ERA.

The A's are currently operating with an eight-man bullpen as the team does not need a fifth starter until July 25. Chris Bassitt, who has made three spot starts in recent weeks, will be recalled at that point.

Briefly Pat Venditte

Pat Venditte threw a 20 pitch bullpen session yesterday right handed. Both hands tomorrow. #Athletics

— Susan Slusser (@susanslusser) July 17, 2015

Ken Korach, one night only

Looks like Ken Korach will be back doing play-by-play for the #Athletics tonight.

— Adam Kadourhe (@AdamKadourhe) July 17, 2015

A familiar voice will be back tonight....just sayin'

— Vince Cotroneo (@vincebaseball) July 17, 2015

This and that

Coco Crisp took some dry swings and will do some baseball activity on field, major development for him. #Athletics

— Susan Slusser (@susanslusser) July 17, 2015

Doolittle still progressing well. He's playing catch out to 90 feet.

— Jane Lee (@JaneMLB) July 17, 2015

Taylor Thompson threw 20 pitches in a sim game.

— Susan Slusser (@susanslusser) July 17, 2015

A previous edition of this post quoted a tweet that purported to attribute the odds of Sean Doolittle returning this season to manager Bob Melvin. This could not be confirmed, and so the quote has been removed.