In "Serving Aces" Alexandra Stevenson and Hugues Laverdière talk Paris Olympics, athletes, controversy - and most importantly, the plight of Coco Gauff and her perceptions about line calls against her.  Alexandra discusses both sides of the controversial call by the chair referee.  Alexandra and Ougi say it's the third time - and the long argument and tears affected Coco's second set.  Alexandra and Ougi felt Coco made the questionable call about race - and they didn't feel race should have been brought into the conversation - this time.  Coco told the supervisor, Claire Wood, that it's about her being cheated - and she said the same thing happened to Serena.  Was Coco correct that the refs are going against her in major events?  Alexandra and Ougi don't think so.  But, they agree there should be electronic line calling at all events - and video replay like the big sports.