England pair Haseeb Hameed and Ben Duckett are named in the MCC team for March's Champion County game against Middlesex.
Division Two side Northants sign England Under-19 captain Max Holden on loan from Middlesex until the end of June.
Former England spinner Monty Panesar is to work with the Australia team before their Test series in India.
The 2017 county fixtures are announced, featuring a full round of day-night Championship matches for the first time.
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How to get into cricket - physical exertion with a chess-like element in matches which range from half an hour to five days.