Crossword puzzle clue "ya believe 1973 mets catchphrase"

"Ya __ believe!": 1973 Mets catchphrase

The 1973 Mets' "Ya Gotta Believe!," e.g.

He slugged 660 homers from 1951 to 1973, started his career with the New York Giants, and ended it with the New York Mets: 2 wds.

Slogan coined by Tug McGraw of the 1973 New York Mets

"I can't believe ___ ..." (old ad catchphrase)

"Republicans believe every day is the Fourth of July, but the Democrats believe every day is ___ 15" (Ronald Reagan)

"Community" character with the catchphrase "Cool. Coolcoolcool."

". . . sting like ___" (end of Ali's catchphrase)