Morrell's striking prowess was too much for the Swans

Izzy Iriekpen's header gave Swansea the lead, but Morrell equalised after a good run and Keigan Parker made it 2-1.

A fine swivel and shot from Lee Trundle made it level and, after Trundle blew a penalty, Iriekpen put the Swans ahead.

But Morrell struck three more in quick succession and Parker rounded off the scoring a minute before full time.

The defeat was Swansea's second in 12 games under Roberto Martinez.

Slim consolation for the sold-out Liberty Stadium crowd will be that Oldham's 1-0 win over Chesterfield meant Swansea would have needed to have won by four clear goals to have made the play-offs.

Blackpool will carry fine form into the knockout stages, having won seven straight games and lost just once in the last 14 matches.

Swansea: Gueret, Amankwaah (Abbott 67), Austin, Iriekpen, Lawrence, O'Leary (Williams 46), Britton, Robinson (Allen 75), Craney, Trundle, Darryl Duffy.
Subs Not Used: Oakes, Richard Duffy.

Goals: Iriekpen 14, Trundle 47, Iriekpen 55.

Blackpool: Hart, Jackson, Williams, Barker, Evatt, Southern, Forbes (Fox 77), Jorgensen, Hoolahan (Gillett 84), Parker, Morrell (Vernon 84).
Subs Not Used: Coid, Gorkss.

Goals: Morrell 25, Parker 32, Morrell 57, 61, 78, Parker 89.

Att: 18,903