The Yankees' thumbs-down celebration has a hilarious backstory
These Are Not Your Father's Yankees - WSJ
Astros pitcher mocks Yankees signature thumbs down
ALCS: Justin Verlander Dominates for Astros in Win Over Yankees - The New York Times
Astros pitcher mocks Yankees signature thumbs down
ALCS: Justin Verlander Dominates for Astros in Win Over Yankees - The New York Times
Disclaimer: I'm not an Astros fan. : r/mlb
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Masahiro Tanaka, Yankees blank Astros, one win from World Series – Orange County Register
Mets players giving their fans the 'thumbs down,' explained
ALCS results 2017: Yankees beat Astros 6-2 in Game 4 to even series
World Series teed up: Harper, Phillies go deep, face Astros
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Astros pitcher mocks Yankees signature thumbs down