(Reuters) - Five birdies in a row put American Collin Morikawa in good position heading into PGA Championship weekend, as the former winner harnessed a red-hot putter to card a six-under par second-round 65 in Louisville, Kentucky on Friday.
Morikawa ended the day 11-under, one shot off the record for a PGA Championship through 36 holes and exactly the start he wanted.
