The pair were teammates at Manchester United.
"It is good to have Danny on board," De Laet told The Sentinel.
"It keeps me sharp in training. As long as I do well in games and in training then, hopefully, I will get picked.
"It is up to the gaffer (Nigel Pearson) who he picks and if he wants to change it he can now, but I have the shirt at the moment and as long as I do well it is mine."
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