Defender Louis Laing has returned to Motherwell on a two-year contract after spending time there on loan last season.
Midfielder Stuart Carswell has joined St Mirren on a one-year deal after leaving Motherwell.
David Clarkson wants to use his experience to help others after returning to Motherwell following a six-year absence.
Motherwell have confirmed the signing of English striker Wes Fletcher on a one-year contract, with a 12-month option.
Motherwell winger Lionel Ainsworth says he never considered leaving after signing a new contract earlier this week.
Motherwell manager Ian Baraclough is hoping he can convince striker Scott McDonald to stay on at the club next season.
Winger Lionel Ainsworth has signed a new two-year deal with Motherwell.
Gordon Marshall has been appointed as Jim Leighton's replacement as Aberdeen goalkeeping coach.
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