Todays' biggest sports news: Lefty juuuuuust misses a record in Phoenix, the NFL addresses the concussion issue (sort of), an A-Rod update, and more.

Phil Mickelson just barely missed out on being only the sixth player to record a round of 59, when his birdie putt on 18 at the Phoenix Open missed by a fraction. Still, his 60 did set a course record. [Fox Sports]

In an attempt to address the ongoing issue of concussions and related head trauma, the NFL will place neurologists on the sidelines during games in 2013. They would not be paid by the teams. [N.Y. Times]

The Los Angeles Lakers are off to very disappointing start, but star off-season acquisition Dwight Howard—who might not be fitting in all that well in the City of Angels—will not need surgery for his sore shoulder. So that's good? [S.I.]

A source tells ESPN that despite recent PED accusations, Alex Rodriguez has no plans to retire. The Yankees owe the aging third baseman $114 million over the next five years, plus a possible $30 million more if he breaks a few home run records along the way. [ESPN]

Former NBA star and part-time professional wrestler Dennis Rodman has written a children's book, called "Dennis the Wild Bull." Where was this when we were looking for stocking stuffers?! [With Leather]