Bayer Leverkusen set a European record of 49 games unbeaten with yet another late, late goal and vowed they would not let up as they pursue a treble and an unprecedented unbeaten season in all competitions. Josip Stanišić scored after 97 minutes in the 2-2 draw at home with Rome on Thursday which sealed a 4-2 aggregate win and a spot in the Europa League final against Italy’s Atalanta. The late leveller, the latest in a string of recent injury-time levellers from the recently crowned Bundesliga champions, also meant Leverkusen beat Benfica’s 1965 record of 48 games unbeaten for sides playing d…