Kobbie Mainoo's late strike earns a thrilling victory after bitter rivals Liverpool had fought back from two goals down. Manchester United secured Champions League football next season as Kobbie Mainoo’s strike earned a thrilling 3-2 victory over old rivals Liverpool. United were 2-0 up inside 15 minutes on Sunday through Matheus Cunha and Benjamin Sesko, but imploded after the break to allow Arne Slot’s men to level with goals from Dominik Szoboszlai and Cody Gakpo before Mainoo secured the win. Recommended Stories list of 4 items list 1 of 4 Who is Cherie DeVaux, the first female trainer to win the Kentucky Derby? list 2 of 4 Gretchen Walsh lowers own 100m butterfly world record for fourth time list 3 of 4 The World Cup & Passport privilege list 4 of 4 Japan’s Inoue beats Nakatani to retain undisputed super bantamweight title end of list A return to Europe’s elite competition after a two-year absence and another big game win furthers Michael Carrick’s case to continue as United boss next season.…