BAKU, Azerbaijan (AP) – If this was goodbye for Eden Hazard and Maurizio Sarri, then it was a stylish farewell. For Petr Cech, it was the worst way to retire. Hazard scored twice past his former teammate as Chelsea sliced through Arsenal in the second half of the Europa League final on Wednesday, netting four times in the space of 23 minutes to win 4-1 in a London derby played far from home. The Belgian then confirmed that he is likely to leave the club this summer, amid widespread speculation about a move to Real Madrid. “I think it is a goodbye but in football you never know,” Hazard told British broadcaster BT Sport . “My dream was to play in the Premier League. I did this for seven years for one of the biggest clubs in the world. Maybe it’s time for a new challenge.” After a drab first half, Chelsea took control in the 49th minute when Olivier Giroud met Emerson’s pass with a diving header into the net. It was the French striker’s 11th goal in 14 games in the Europa League this season, but he barely celebrated against his old team, kneeling with palms raised as…