Yahoo Sports reports: Welcome back to the Monday Tennis Briefing, where The Athletic will explain the stories behind the stories from the past week on court. This week, Serena Williams returned, an awkward run of results for two best friends continued, and the dog days might be over at Wimbledon. If you’d like to follow our fantastic tennis coverage, click here. How did Serena Williams’ comeback feel? It was the headbands that got me. I can’t think of a moment I’ve been excited about a GOAT coming out of retirement.