It's been a rough ride for John Daly at the PGA Tour of Champions. The American golfer has been struggling with his game since the beginning of the year. He even withdrew from the PGA Championship at Oak Hills citing an undisclosed malady last week.Injury has seemingly been the valid explanation for his degrading performance. Despite that, the PGA Champions players decided to give it a try at the Senior PGA Championship, which is underway at Field Ranch Fast in Texas from May 25 to May 28.John Daly started the game with a double bogey and then again made a double bogey at the 13th after which he called it a day citing swelling in his knee. Just within hours of withdrawing from the Senior major Championship, John Daly ripped the PGA Tour on Twitter, saying:"So hard to play tee boxes that are down grade. Golf course is great but I wish they would make their tee boxes level! We are not young anymore!! Some guys are ADA and we can not follow through on down hill tee boxes!! I’m sorry @PGA you are going the wrong way in golf but I love y’all. But you are making holes really really long.. St Andrew’s never had a downhill tee box. Quit while your NOT ahead…. Thank you 13."John Daly@PGA_JohnDalySo hard to play tee boxes that are down grade. Golf course is great but I wish they would make their tee boxes level! We are not young anymore!! Some guys are ADA and we can not follow through on down hill tee boxes!! I’m sorry @PGA you are going the wrong way in golf but I… twitter.com/i/web/status/1…139958So hard to play tee boxes that are down grade. Golf course is great but I wish they would make their tee boxes level! We are not young anymore!! Some guys are ADA and we can not follow through on down hill tee boxes!! I’m sorry @PGA you are going the wrong way in golf but I… twitter.com/i/web/status/1… https://t.co/Uajbg2HRA4John Daly ended the message by sarcastically complimenting the 13th hole, a reference to the hole on which he decided to withdraw from the Senior major.It is worth noting that John Daly had knee replacement surgery in December, shortly after competing in the PNC Championship.Padraig Harrington secures the lead at the Senior PGA ChampionshipAfter the second round of the 2023 Senior PGA Championship, Padraig Harrington secured the lead with a scoring deficit of 12. He registered a three-stroke lead in the tournament.Katsuyama Miyamoto sits at the second position followed by Stewart Cink, while last year's winner Steven Alker finished in a three-way at ninth place alongside Miguel Angel Jimenez and Marco Dawson.Here's the full leaderboard of the Senior PGA Championship Round 2:1. Padraig Harrington2. Katsuyama Miyamoto3. Stewart Cink4. Steve StrickerT5. Y.E. YangT5. Adilson da SilvaT5. Alex CejkaT5. Darren ClarkeT9. Miguel Angel JimenezT9. Steven AlkerT9. Marco DawsonT12. Retief GoosenT12. David TomsT12. Stephen AmesT15. Chris DiMarcoT15. David BranshawT15. Colin MorikawaT15. Robert KartssonT19. Steven FleschT19. Lee JanzenT19. Scott MaCarronT19. Rocco MediateT19. Shaun MichaelT19. Thomas BjornT19. Vijay SinghT19. Paul StankowskiT27. Glen DayT27. Jerry KellyT27. Bernhard LangerT27. Justin LeonardT27. Richard GreenT27. Hiroyuki FujitaT27. K.J ChoiT27. Charlie WuT35. Bob EstesT35. Paul BroadhustT35. Ken TanjgasaT35. Timothy O'NealT39. Clark DennisT39. Gary WolstenholmeT39. Harrison FrazarT39. Mark HensbyT39. Rod PamplingT39. Corey PavinT39. Phillip PriceT39. Dicky PrideT39. Cameron DoanT39. Kevin SutherlandT39. Mike WeirT39. Tom GrillsT39. Arjun AtwalT39. Ricardo GonzalezT39. James KingstonT39. Dave McNabb