Robinson's only other involvement was as a late substitute in the Capital One Cup exit to Tottenham last August and Lambert admits the youngster has a lot to learn.
"He's only a baby," said Lambert.
"He's been doing really well with the reserves. He's got years and years to go before he can be classified as a massive professional footballer.
"But he's on the right little ladder at the moment and he's a really great kid. I think I've always said if your good enough I'll play you. He's deserved his chance."
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