The Players Championship. Sergio Surges, Castro Crashes. May 11 2013

Sergio Garcia surged to the top of the leaderboard at the halfway stage of The PLAYERS CHAMPIONSHIP at TPC Sawgrass, while Roberto Castro, yesterdays first round hero crashed down the board. Sergio Garcia is a past winner of The Players Championship, taking the crown in a playoff in 2008. Sergio Garcia / Andy Lyons/Getty Images Sergio shot a second round -7 under par 65, to surge to the top of the leaderboard with a tournament total of -11 under par. Sergio, a past winner here, in 2008, is his own man, and fears no one, not even second placed Tiger; "I don't have to measure myself against anybody, I know what I want to try to do, and any given day I can shoot a round like this and any other day he can shoot a good round and beat me. Like we always say, it's not a sprint, it's a marathon. So there are going to be good days and not so good days, so just got to enjoy the good ones as much as possible. Fortunately for me, I've managed to play quite decent on this golf course, so any good thing that you can get in your head, it's obviously positive and those kind of things always help. But it's a different year. We'll see if we can manage to do something similar." Tiger is just one shot adrift of the leader, at -11 under par, after his second round of -5 under par 67. Tiger was pretty happy to be where he is; " I'm pretty pleased with where it's at right now, I've just never been able to put it all together for this one particular week. But so far this year, I'm right there. Even though I haven't played well in the past, I've still won here, actually, I've won here twice, technically. { Tiger was referring to the U.S. Amateur in 1994 }  I haven't played my best here, but I've always felt that courses, even though it's been a while I've won on them, I've still won on them, I know how to get around this golf course. This course, more than most, really tests every facet of your game. You have to drive the ball well. You have to hit your irons in the correct spots, and if you don't hit your irons in the correct spots, you're going to have some really funky up-and-downs. It's trying to manage the ball in the correct spots, and I've done that the first two days." There are three players tied in third place, at -9 under par for the tournament; they are, Kevin Chappell, second round -6 under. Lee Westwood also with a -6 under,66, and Henrik Stenson, -5 under par second round. Roberto Castro crashed down the leaderboard, struggling with a second round +6 over par,78, but he did make the cut. Big name cut casualties include, Phil Mickelson, Vijay Singh, Rickie Fowler, Jim Furyk, Ian Poulter, Justin Rose, Graeme McDowell and Ernie Els. Quite a star-studded list. Tomorrow is moving day, who will move out of the reckoning ?