Phil Mickelson had $40m in gambling losses from 2010 to 2014, book says

• Auditors find golfer lost $40m in investigation of finances
• Revelation appears in Mickelson biography due out in May

Federal auditors investigating Phil Mickelson's role in an insider trading scheme found his gambling losses totaled more than $40m from 2010 to 2014, according to an excerpt from Alan Shipnuck's forthcoming biography.

Shipnuck posted the excerpt on his Firepit Collective site Thursday. His unauthorized biography on Mickelson is to be released on 17 May during the PGA Championship. Mickelson is the defending champion. He has not said if he will be playing.