Dundee United have been linked with two Ipswich Town players as manager Micky Mellon makes use of his English contacts book.
Norwood (29) played under Tannadice boss Micky Mellon at Tranmere Rovers and there is competition from Fleetwood Town for his signature.
He scored 11 goals in 32 appearances for Ipswich last season despite being hampered by a groin injury.
Nsiala (28) spent the latter part of last season on loan at Bolton.
He is a graduate of Everton’s youth academy and has one cap for his country Democratic Republic of Congo.
The Tangerines also completed the signing of Blackpool central defender Ryan Edwards today.