Bayer Leverkusen claimed a big 3-0 statement win over champions Bayern Munich as they went five points clear of them at the top of the Bundesliga and took their unbeaten season record to 31 games. Full back Josip Stanisic, who is loan at Leverkusen from Bayern, opened the scoring in the 18th minute of the topper. Alejandro Grimaldo fired the second five minutes after the restart, and Jeremie Frimpong wrapped up a memorable night in stoppage time. Xabi Alonso’s Leverkusen grew into the game after Bayern had dominated the first minutes. The champions improved again later in the second half but f…