Whelan to see Martinez in his office

Wigan Athletic 0 Swansea City 2: Owner expresses anger with manager after Sigurdsson's two sublime strikes destroy tired Wigan

Gylfi Sigurdsson scores the first of his two long-range goals for Swansea to increase the pressure on the Wigan manager Roberto Martinez (Getty Images)

The Wigan owner, Dave Whelan, launched an attack on his manager, Roberto Martinez, following his side's defeat by Swansea, and will summon the Spaniard to a meeting next week.

"That was our worst performance in four or five years and I will be having a meeting with Roberto on Monday to ask him some questions about the performance and the selection," said Whelan.

He was also angered by the absence from the starting line-up of Mohamed Diame, Hugo Rodallega and Victor Moses: "There were three quality players on the bench and I want to know why. Roberto's future is secure. He has done a great job for the club, but I want a meeting so he can put his cards on the table, and I will put my cards on the table too."

Many of Martinez' international stars only returned to England on Friday night, causing his side to look lethargic.

"It was an impossible week for us with eight or nine players arriving late last night – it's not an excuse, it's a reality," he said. "Against Swansea, with their movement and possession, you have to be very, very fit, and today we couldn't reach that level."

Gylfi Sigurdsson struck from distance either side of half-time as Swansea continued to heap misery on their former manager. Martinez hasn't seen his side win at home since August and they are rooted to the foot of the table. Here the Swans hung on for a hard-fought win, despite seeing Nathan Dyer sent off midway through the second half.

Swansea broke in the 39th minute, following sustained pressure from their opponents, as Scott Sinclair dribbled the ball 50 yards before a one-two with Dyer put him through on goal, allowing him to round Ali Al Habsi, only to see his tame sided-footed shot cleared off the line by the backtracking James McCarthy.

It took a moment of brilliance from Sigurdsson with the final kick of the half to bring the match to life. The Icelander received a Steven Caulker pass 25 yards from goal before turning and curling an unstoppable, dipping shot into the top corner. It was the midfielder's second goal since joining Swansea on loan.

A clumsy challenge from Moses on Dyer gave Sigurdsson the chance to double his tally. The Icelander was as sublime with the ball in a static position as he was from open play. After a short run-up he hit the ball with equal measures of ferocity and swerve over the wall and into the keeper's side of the goal. Al Habsi had taken a fatal step to the right, allowing the ball to sail home.

A game between two sides who try to play cultured football was understandably devoid of robust challenges – until the 60th minute, when Dyer was dismissed for a high, studs-up tackle on Jordi Gomez when the two players were going for a bouncing ball. The Spaniard beat the Swansea player to the ball by a split-second, but it was enough for the referee, Andre Marriner, to produce the red card.

"We were outstanding in every element of our game," said Brendan Rodgers after his side's first win in three games "When we had the man sent off we had to show the other side of our game. We had great control despite not having much of the ball."

Wigan (4-1-3-2): Al Habsi; Boyce, Alcaraz, Caldwell, Figueroa (Rodallega, 68); McCarthy; Gomez, McArthur (Diame, 46), Beausejour; Di Santo, Sammon (Moses, 46).

Swansea (4-3-3): Vorm; Rangel, Williams, Caulker, Taylor; Britton, Allen, Sigurdsson (Tate, 62); Sinclair, Graham (Moore, 75), Dyer.

Referee Andre Marriner.

Man of the match Sigurdsson (Swansea).

Match rating 7/10.