Wales captain Alun Wyn Jones will equal the world record for international rugby union appearances in Saturday's Six Nations match at home to Scotland. The lock's 148th Test, a tally that includes nine internationals for the British and Irish Lions, will see him draw level with the mark of retired former New Zealand captain Richie McCaw, the All Blacks' World Cup-winning skipper in 2011 and 2015. Meanwhile Wales coach Wayne Pivac has made four changes to the side beaten 33-30 by England at Twickenham last week. Scrum-half Rhys Web, lock Cory Hill, uncapped prop WillGriff John and fellow front-rower Wyn Jones are all in the starting XV as Wales try to avoid a fourth successive loss this tournament. Wales (15-1) Leigh Halfpenny; George North, Nick Tompkins, Hadleigh Parkes, Liam Williams; Dan Biggar, Rhys Webb; Josh Navidi, Justin Tipuric, Ross Moriarty; Alun Wyn Jones (capt), Cory Hill; WillGriff John, Ken Owens, Wyn Jones Replacements: Ryan Elias, Rhys Carre, Leon Brown, Will Rowlands, Taulupe Faletau, Gareth Davies, Jarrod Evans, Johnny McNicholl jdg/iwd