Danny Lee and Tim Wilkinson have missed the cut at the Players' Championship in Florida.
Lee has carded a one-over par 73 in his second round to be at two-over for the tournament, missing the cut by two strokes.
Wilkinson ended in a tie for 126th at six-over par after a five-over 77 in his second round.
Americans Kevin Na and Jerry Kelly sit atop the leaderboard at eight-under at the halfway stage, with Na shooting 69 to retain his first round lead, while Kelly shot the best round of the day with a seven-under 65 to vault 39 places up the leaderboard.
Rickie Fowler is in a tie for third at six-under par alongside South Africa's Branden Grace, Canada's David Hearn and American Chris Kirk.