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, a player’s injury comeback led to a wider discussion, the strangest shadows in tennis struck again, and a star of college tennis on and off the court found more success. If you’d like to follow our fantastic tennis coverage, click here. How did one player’s injury announcement fit into a wider debate? After Holger Rune confirmed he would miss Wimbledo