American Zach Johnson has had the big round in the second round of the 2012 Players Championship at TPC Sawgrass at Ponte Vedra Beach, Fla. Through 17 holes, Johnson has shot a seven-under round to give him nine-under overall for the tournament, giving him a two-stroke lead over first round co-leader Englishman Ian Poulter, who starts his round shortly

The other first round co-leader, Scotsman Martin Laird, shot a one-over 73 in the second round to put him at six-under for the tournament.

Another big round on Friday was shot by South Korean Charlie Wi with a five-under 67 to put him at six-under for the tournament.

Tiger Woods will tee off his second round along with Hunter Mahan at 1:49 p.m.

For real-time leaderboard updates throughout the tournament, visit Golf.com.

We'll keep you up to date with all the latest news and updates for this tournament in thisStoryStream, but you can head to Waggle Room or the SB Nation golf hub page for more on the PLAYERS.