Twice Tour de France champion Tadej Pogacar won the Tour of Lombardy for a second straight year on Saturday as top names Alejandro Valverde and Vincenzo Nibali retired from the sport. The Slovenian sealed victory after the 253-kilometre ride from Bergamo to Como ahead of Spaniards Enric Mas and Mikel Landa. “It’s great to come back and win again. To win the last race of this season – it’s just great, unimaginable,” Pogacar said. The 42-year-old Valverde, from Spain, ended his glittering but controversial career with a respectable sixth-placed finish while Italian Nibali was 24th. Nibali, now 3…