SAN FRANCISCO — Mets rookie Jordany Valdespin wore a collared shirt when he appeared in the New York clubhouse for the series finale against the San Francisco Giants on Thursday.

Another lesson learned the hard way.

Valdespin came to AT&T Park wearing a white T-shirt on Wednesday. After the game, he found the sleeves shredded and the front and back were written on.

He did not find it funny at first, thinking the “El Hombre” and “NY Loves Valdy” written on his shirt was a reflection of his playing style.

After meeting with several team veterans, Valdespin came out laughing and wore the altered shirt out of the clubhouse.