Neil Walker makes his debut in orange and blue

.@NeilWalker18 honors father with new jersey number at @Mets holiday party.https://t.co/4YdoSYZ0wO pic.twitter.com/2yqF7tErA4 — MLB (@MLB) December 16, 2015 Former Pirates 2B Neil Walker Introduced today at Mets’ Christmas and Annual Kids Holiday Parties Pittsburgh Pirates’ fans still stinging about the December 9th…