Paris St-Germain's Idrissa Gueye refused to play in a match to avoid wearing a rainbow symbol in support of LGBTQ+ rights, BBC Sport understands. The 32-year-old former Aston Villa and Everton midfielder was absent from Saturday's 4-0 win over Montpellier. PSG boss Mauricio Pochettino said only that Senagalese Gueye missed the game for "personal reasons".…