Sadio Mane seals Southampton's Premier League win against Swansea
Virgil van Dijk's first goal in England and Sadio Mane's third in a week helped fire Southampton to a 3-1 win over Swansea.
Centre-half Van Dijk, the £13million deadline-day signing from Celtic, headed an early opener before Dusan Tadic struck at the start of the second half.
Mane then added the third to make it nine goals for free-scoring Saints this week following their Capital One Cup demolition of MK Dons.
Swansea, by contrast, are now without a win from their last four matches, although they at least registered their first goal in that stretch when Gylfi Sigurdsson tucked away a penalty.
However, the Swans were well beaten by then, as Saturday's first England-versus-Wales showdown went to the home side.
The Swans could have taken the lead in the sixth-minute when Maarten Stekelenburg parried Jonjo Shelvey's shot into the path of Ki Sung-Yueng.
But unfortunately for Ki, the South Korean midfielder's finish would have looked more at home at Twickenham as he blazed high over the crossbar.
Saints began to threaten after Victor Wanyama robbed Andre Ayew and fed Graziano Pelle, who teed up Mane for a shot which he dragged across goal and inches wide.
And the opening goal arrived in the 10th minute when Van Dijk shook off the attentions of his marker, former Saint Jack Cork, to power in a near-post header from James Ward-Prowse's corner.
Swansea briefly threatened to rally before half-time but Shelvey's shot flew over and Stekelenburg saved well low down from Ki.
Garry Monk made a double change at half-time, hauling off Cork and the ineffective Bafetimbi Gomis.
But Southampton gave themselves some breathing space in the 54th minute when Pelle's neat chip sent Tadic scampering in behind.
The Serbian midfielder looked to have gone too wide but as he cut back inside and shot, the ball looped up off the boot of Ki and flew over Swansea goalkeeper Lukasz Fabianski.
And just as Saints fans began regaling their Welsh visitors with a chorus of Swing Low Sweet Chariot, Mane popped up with his fourth goal of the season.
Ashley Williams only half-cleared after Pelle prodded the ball goalwards and Mane was on hand to guide a precise, low shot inside Fabianski's right-hand post from 20 yards.
Swansea did at least manage a consolation, ending their recent goal drought, after Neil Taylor was brought down by Jose Fonte in the 82nd minute and Sigurdsson stepped up to tuck in the spot-kick.
TWEET OF THE MATCH
"@RonaldKoeman: Not our best game but high efficiency and important points! #SaintsFC" - The Southampton boss obviously wanted more from his side despite a comfortable win.
Maarten Stekelenburg: 6
Cedric Soares: 6
Jose Fonte: 6
Virgil van Dijk: 7
Ryan Bertrand: 7
Steven Davis: 7
Dusan Tadic: 7
Victor Wanyama: 7
James Ward-Prowse: 6
Sadio Mane: 8
Graziano Pelle: 7
Oriol Romeu: 6
Jay Rodriguez: 6
Lukasz Fabianski: 5
Neil Taylor: 6
Ashley Williams: 5
Federico Fernandez: 5
Kyle Naughton: 5
Ki Sung-Yeung: 5
Jack Cork: 5
Gylfi Sigurdsson: 5
Jonjo Shelvey: 6
Andre Ayew 5
Bafetimbi Gomis 5
Jefferson Montero: 5
Leon Britton: 5
Sadio Mane: The Senegalese forward looked in the mood from the first whistle and caused Swansea problems all afternoon. Deserved to cap his performance with a goal.
MOMENT OF THE MATCH
Mane's goal: Williams only half-cleared the ball and Mane was calm enough to guide the ball inside Fabianski's left-hand post from 20 yards.
VIEW FROM THE BENCH
Swansea came to soak up Southampton pressure and maybe hit them on the break. It didn't work. Southampton's slick attacking trio of Pelle, Tadic and Mane were too good for the visitors.
MOAN OF THE MATCH
Swansea leaving Bafetimbi Gomis isolated up front: The French striker always looks a threat when he is on the ball, but cannot do much without it. Might as well have not been on the pitch.
WHO'S UP NEXT
Chelsea v Southampton (Premier League, Saturday October 3)
Swansea v Tottenham (Premier League, Sunday October 4)