Greg Norman's Open Championship hangover continued as he struggled at the halfway mark of The Senior Open Championship.
The 53-year-old Australian ran Padraig Harrington close in the The Open at Birkdale last week, leading going into the final round before finishing third.
But Norman, who finished with an eagle on the 16th and a birdie on the last for a one over par round of 72, remains five over par - eight shots off the lead held by American Bruce Vaughan.
The joint overnight leader is a shot clear of compatriot John Cook and two ahead of Bernhard Langer, Eduardo Romero and defending champion Tom Watson at Royal Troon Golf Club.
Vaughan admitted it was too early to think about the prospect of the biggest pay day of his career but insisted he was not surprised to find himself in contention.
"You look at my scores in the last half of the year and I have been playing pretty good. A lot of it has been the putting which has let me down," he said.
"I have had some good finishes but I have had some problems with my knee so I haven't really been playing that well until last year so it is just good to be out here and competing with guys who are in the field here."
Collated second round scores & totals in The Senior Open Championship by Master Card, Royal Troon GC, Ayrshire, Scotland
(USA unless stated, par 71):
139 Bruce Vaughan 68 71
140 John Cook 69 71
141 Bernhard Langer (Ger) 70 71, Tom Watson 70 71, Eduardo Romero (Arg) 68 73
142 Kirk Hanefeld 69 73, Mark McNulty (Irl) 70 72
144 Andy Bean 69 75
145 Gary Hallberg 76 69, Luis Carbonetti (Arg) 72 73, Tony Johnstone (Zim) 71 74, Mike Reid 73 72
146 Philip Blackmar 74 72, Ken Green 75 71, Costantino Rocca (Ita) 73 73, Gene Jones 70 76, Jeff Hall (Eng) 73 73, Wayne Grady (Aus) 74 72, Ronnie Black 74 72
147 Joey Sindelar 70 77, Tim Conley 73 74, Eamonn Darcy (Irl) 71 76, Greg Norman (Aus) 75 72, Kiyoshi Murota (Jpn) 75 72, Adam Adams 76 71, John Bland (Rsa) 71 76, David Merriman (Aus) 74 73
148 Craig Stadler 74 74, Tom Kite 76 72, Mark James (Eng) 75 73, Seiji Ebihara (Jpn) 75 73, Andrew Murray (Eng) 72 76, John Morse 70 78, Ian Woosnam (Wal) 75 73, Ross Drummond (Sco) 72 76, Jon Chaffee 73 75, Isao Aoki (Jpn) 75 73
149 Nick Job (Eng) 69 80, Jim Lapsley (Nzl) 76 73, Mike Goodes 75 74, Peter Mitchell (Eng) 74 75, Mark O'Meara 74 75, Denis O'Sullivan (Irl) 75 74, Jim Rhodes (Eng) 74 75, Clarence Rose 76 73
150 Bertus Smit (Rsa) 76 74, Bob Boyd 78 72, James Chancey 77 73, Mark Wiebe 74 76, Martin Poxon (Eng) 75 75, Jerry Bruner 78 72, Manuel Pinero (Spa) 78 72, Tim Simpson 75 75
151 Mike Williams (Zim) 72 79, Katsuyoshi Tomori (Jpn) 78 73, Pete Oakley 74 77, Mike Hulbert 75 76, Angel Franco (Par) 76 75, Noel Ratcliffe (Aus) 76 75, Yutaka null Hagawa (Eng) 75 76
152 Phil Hinton (Eng) 77 75, Tommy Horton (Eng) 80 72, Juan Quiros (Spa) 74 78, Terry Gale (Aus) 78 74, Scott Hoch 79 73, Jeff Sluman 78 74, John Hoskison (Eng) 75 77, Tom McKnight 76 76, Bill null Mccoll (Sco) 76 76, Scott Simpson 75 77, Gary Koch 76 76
-------------------The following players failed to make the cut--------------------
153 David Ogrin 73 80, Carl Mason (Eng) 77 76, John Ross 72 81, Bob Gilder 77 76, Vicente Fernandez (Arg) 74 79, Bob Charles (Nzl) 81 72, Bill Longmuir (Sco) 76 77, John Mctear (Sco) 75 78, Maurice Bembridge (Eng) 80 73, Motomasa Aoki (Jpn) 79 74, David Good 78 75
154 John Chillas 79 75, Jimmy Blair 79 75, Martin Gray (Eng) 77 77, Andrew Reynolds (Eng) 75 79, Sam Torrance (Sco) 73 81, Ron Streck 80 74, Gordon J Brand (Eng) 75 79, Denis Durnian 74 80, Arthur Pierse (Irl) 80 74, Sandy Lyle (Sco) 75 79, Tomohiro Maruyama (Jpn) 74 80
155 Guillermo Encina (Chi) 79 76, Des Smyth (Irl) 78 77, Bobby Lincoln (Rsa) 80 75, Jose Rivero (Spa) 77 78
156 Giuseppe Cali (Ita) 80 76, Gordon Townhill (Eng) 80 76, Gary Player (Rsa) 81 75, Ian Brotherston (Sco) 76 80, Bruce Heuchan 81 75, Simon Owen (Aus) 78 78, Nobumitsu Yuhara (Jpn) 74 82
157 T.c. Chen (Tpe) 80 77, Horacio Carbonetti (Arg) 80 77, Ray Carrasco 78 79, David
j Russell (Eng) 78 79, Domingo Hospital (Spa) 82 75, J A Fraser (Sco) 72 85, Donnie Hammond 78 79, Bob Cameron (Eng) 80 77
158 Tony Allen (Eng) 78 80, Tony Price (Wal) 81 77, Steve Martin (Sco) 80 78, Brady Exber 78 80, Harumitsu Hamano (Jpn) 81 77, Andrew Hall (Eng) 79 79
159 Buddy Harston 79 80, Tim Giles (Eng) 79 80, Steve Stull 83 76, Adrian Morrow (Irl) 73 86, John Harris 79 80, Peter Dahlberg (Swe) 80 79
161 Torsten Giedeon (Ger) 79 82
162 Antonio Garrido (Spa) 78 84
163 Ossie Moore (Aus) 83 80
164 Joel Hirsch 82 82, Paul j Mckellar (Sco) 87 77, Jimmy Heggarty (NIrl) 82 82, Steve Prendergast (Irl) 84 80
165 David Downie (Sco) 83 82, Robin Clark (Eng) 83 82, Mike Gallagher (Eng) 84 81, Peter Teravainen 80 85, Bill Lockie (Sco) 79 86
166 Garry Harvey (Sco) 83 83, John Mcdonald (Sco) 78 88
167 Shigenori Mori (Jpn) 81 86
172 J.p. Morgan (Eng) 84 88
173 Niall Lavin (Irl) 85 88
174 Robert Fox (Eng) 85 89
175 Stewart Graham (Eng) 87 88
NORMAN CALLS FOR OLYMPIC RECOGNITION
WOODS STILL ON TOP
Labbadia takes over from Skibbe