Source: https://www.irishtimes.com/sport/soccer/english-soccer/if-diego-costa-is-a-hit-chelsea-should-be-champions-1.1898320?mode=sample&auth-failed=1&pw-origin=https%3A%2F%2Fwww.irishtimes.com%2Fsport%2Fsoccer%2Fenglish-soccer%2Fif-diego-costa-is-a-hit-chelsea-should-be-champions-1.1898320