#1 The Bar ( Sheamus and Cesaro)

One of the most decorated tag teams in the company over the past few years, Sheamus and Cesaro started as just another randomly put together team. The duo was in the midst of their best of seven series in the fall of 2017 which ended in a 3-3 tie. Following this, RAW General Manager Mick Foley decided to put them together as a tag team.
The early days of The Bar saw a very interesting dynamic play out between Sheamus and Cesaro. Despite joining forces, Sheamus and Cesaro didn't change their character and we're at loggerheads. Sheamus was the heel in the team while Cesaro was the cheerfull good guy. This made for some interesting TV moments and gradually saw a shift in Sheamus who slowly starting acting out as a face before the duo's fully turned heel during their feud against The Hardys.
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But, they did rake up some impressive victories along the way which resulted in them getting a shot at The New Day at Roadblock 2017. Sheamus and Cesaro defeated The New Day to become the RAW Tag Team Champions, thus breaking The New Day's historic 438-day reign as tag champs.
The Bar was the backbone of the tag division during their time together as a unit. The duo has had a plethora of incredible matches against a myriad of opponents. They won the RAW Tag Team Championship a record four-time and held the Smackdown Tag Team Championship once.
The duo's partnership came to end in April 2019 following Sheamus' injury and Cesaro move to RAW during the Superstar Shake-up. But, now with Cesaro on SmackDown and Sheamus returned to the blue brand a few weeks ago, the possibility of seeing The Bar together once again isn't out of the realms of possibility. But it seems like Sheamus going to be performing as a singles star on the blue brand if his promos are anything to go by. But, as they say, never say never in WWE.