The phrase "right sideline" refers to the edge or boundary on the right side of a field or court, often used in sports like football or basketball. Full definition
Yet, pro-life Christians are frustrated to see their place as fellow defenders of human rights sidelined along with the New Wave Feminists» removal. (christianitytoday.com)
He had a lot of extra time to look over the defense, but out of the corner of his eye spotted sophomore Chris Steele on the far right sideline in the end zone. (sportstarsmag.com)
The first play of the fourth quarter is a big one: Vaughns somehow manages to reel in a deep ball along the right sideline and keep a foot in bounds. (sbnation.com)