Brighton midfielder Marc Leonard has joined Northampton on-loan.
Leonard spent last season on-loan with the Cobblers.
Town boss John Brady said: "Anyone who watched him play last season will know what he can bring to the team and the role he can play.
"Marc was one of the top performing players in the division last season.
"The fact that two Premier League clubs are willing to send a young player back to us for a second loan spell shows they value and respect the work we do too, the setup we have and the progress the players are making."