But the game will be remembered for Suarez' outrageous third in the 83rd minute which saw him lob Ruddy with a looping drive from just inside the Norwich half.
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United competed until the 59th minute when Mike Williamson fouled Luis Suarez for a penalty that Dirk Kuyt converted.
It suspended Suarez for eight games, and Liverpool did not appeal the ban.
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No doubt he deserves to be punished, but the FA is too happy to demonstrate it has double standards for players like Suarez.
Suarez doubled the lead after the break when he powered in from a tight angle before Sunderland's Mensah was shown red for pulling back Suarez.
And with the eight minutes of the match remaining, Sunderland's miserable day was compounded with the sending off of Mensah for pulling back Suarez, who was through on goal.
Liverpool's American owners were widely criticized for not taking stronger action after the Suarez-Evra incident, and for allowing former team manager Kenny Dalglish to publicly defend his player while the FA was still investigating and after the verdict was announced.
Leading 1-0 through Smith's third minute strike, Suarez equalized for Liverpool before Oldham scored two quick goals either side of the break.
Suarez was suspended for biting Chelsea defender Bransilav Ivanovic in a match last Sunday.
The incident led to Uruguayan Suarez being banned for eight games by the FA, who found him guilty of making racist slurs against Evra.
Mikel Suarez went closest for Boston, hitting the bar with a header, but they were unable to break down their Unibond First Division South opponents.
As well as suffering their fifth defeat in six games, leaving them ninth in the Premier League, Bruce lost three players through injury in the match and had Mensah sent off late on for a foul on Luis Suarez.
Luis Suarez set him up for his second after the break and he rounded off his triple in stoppage time.
The 75th-minute penalty prompted a silent, defeated exodus from the stands and when Forlan floated an exquisite pass to Suarez who then crossed for Alvaro Perreira to head home Uruguay's third deep into injury time the stadium was only half full.
In South America, Uruguay -- who finished third at the World Cup two years ago -- were humbled in La Paz where Bolivia won 4-1, with Luis Suarez scoring a consolation goal for the visitors late on.
Suarez, 26, had apologized for his actions and was heavily fined by Liverpool.
Suarez is one of six nominees for the PFA player of the year award -- voted for by his peers -- which will be announced on Sunday.
The Clattenburg case came on the same afternoon as referee Andre Marriner earned the wrath of Everton manager David Moyes, who felt that Uruguay striker Luis Suarez should have been sent off for a bad tackle in Sunday's Merseyside derby against Liverpool, which ended 2-2 at Goodison Park.
In England, both Luiz Suarez and John Terry received bans for racial abuse in separate incidents that took place in 2011 but the story that made headlines around the world came when Milan's Kevin-Prince Boateng led his team off in a friendly in protest at racism from supporters this January.
Chelsea's John Terry and Liverpool's Luis Suarez were fined and received lengthy bans for two separate offenses which occurred in 2011.
"The access of the so-called peso-a-year advisers will be limited - this is good for the administration, " says Quezon congressman Danilo Suarez.
Sensing their first lost points since that Merseyside derby, Liverpool pressed for a winner and they were inches away when Suarez struck the bar with a 20-yard free-kick.
We now know that Suarez drew up many of the original ideas for the gardens, despite Chalfin's claims to the contrary years later.
Striker Suarez, with 49 goals in 48 games for Ajax last season, was all too frequently caught offside, while playmaker Ignacio Gonzalez was a peripheral figure.
Diego Forlan capped an impressive performance with two goals - the first a 30-yard deflected strike, the second a well-taken penalty after Luis Suarez had been fouled by goalkeeper Itumeleng Khune, for which he was red carded - and Alvaro Pereira added a late third.
It was, for the most part, consistent, although both he and Mr Suarez were understandably unable to remember every detail of the exchanges between them.
Suarez said she considers her reputation shattered but is looking for opportunity by voluntarily stepping fully into the limelight that has been chasing her.
In Dalglish's playing days and his original stint as Liverpool manager, it's safe to say that he probably would not have come across a player like Suarez, who once received a seven-game ban for biting an opponent.
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Suarez, who is so prolific in front of goal for club side Ajax, was to squander further chances: hitting the side-netting from a tight angle from 10 yards and also firing straight at keeper Khune from a promising position 20 yards out.
Suarez's neat close-range finish sealed the win for the hosts, for whom former Newcastle striker Andy Carroll came off the bench for the final 20 minutes.
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