The 19 year old has been at Kenilworth Road since joining as an under-14, and heads to a Farnborough side sitting in 14th place in the southern section of the sixth tier.
Matthews-Lewis has scored twice for the Hatters in this season’s Premier League Cup and last season he scored a hat-trick in the Beds Senior Cup final win over Biggleswade.
Farnborough face Chelmsford City on Saturday.
Good luck, Millar!
Tags