LONDON, Jan 21 (Reuters) - ‌Chelsea boosted their chances of a Champions League top-eight finish on Wednesday ‌when Moises Caicedo headed home from a corner in the 78th ‌minute to break down a stubborn Pafos defence.The London side squeezed into eighth in the table on goal difference with one match to go - a tough away game at 25th-placed Napoli, managed by ‍former boss Antonio Conte.