By Matthew Abbott Bubba Watson acknowledges tension was apparent between LIV Golf and PGA Tour players at the Masters Champions Dinner last year. Watson, 45, attended the gathering alongside fellow LIV members Charl Schwartzel, Dustin Johnson, Patrick Reed, Phil Mickelson and Sergio Garcia. Scottie Scheffler hosted those six and 26 other former champions, plus Augusta National chairman Fred Ridley. Despite being the first Masters following the launch of LIV, the elephant in the room was not even mentioned inside the clubhouse across the evening. Mickelson is said to have scarcely spoken 12 mon…