Wilfried Zaha and Adnan Januzaj both saw action, while Jesse Lingard was part of the matchday squad.
"Celebrating in the dressing room after winning a trophy is always a fantastic feeling," Smalling told manutd.com.
"It just makes you hungrier to do it again.
"It's great for some of the new lads like Wilf, Jesse and Adnan to experience that feeling - it really gets you in the zone and shows you what you're fighting for."
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