It's not the sawdust nor the line judge

John Mcenroe's temper tantrums were frequent and more fierce than a toddler.

He complained about his racket. He complained about the line judges. He even complained about the quality of sawdust used to improve his grip.

Today will offer bad calls/poor quality sawdust/ineffective rackets but will you and I outplay are conditions as well as ourselves and our opponent?