Niemann shares lead as Chappell shoots stunning 59 at Greenbrier

Rock hard greens see Lahiri slips to tied 39th

Mickelson 'wasn't really thinking' as he incurred bizarre penalty

Lahiri slips in third round, but still in fray at Greenbrier

Lahiri sizzles with 61, zooms to second place at Greenbrier

Kraft fires 63 to lead at Greenbrier

Lahiri tied 2nd after halfway stage in 2nd round