Eagle-eyed Keith Mitchell grabs two-shot lead at the PGA Valspar Championship
Stewart Cink among five sharing lead at darkness-halted Valspar Championship
Kevin Streelman grabs one-shot lead at PGA Tour's Valspar Championship
Schenk clings to PGA Valspar lead as Spieth and Fleetwood chase
Ryan Brehm aces 17th hole to grab share of PGA Valspar lead
