One of the most popular WWE stars finally made his debut on Forbidden Door. After an unfortunate injury to Bryan Danielson, Tony Khan tapped Claudio Castagnoli (FKA Cesaro) to join AEW in their latest pay-per-view. Castagnoli's entrance was met with a humongous pop, as wrestling fans were excited to see the Swiss wrestling in a new brand.

Many fans cheered for Castagnoli's debut, including one of his former co-workers in the WWE. Becky Lynch, one of the biggest stars in the WWE, took to Twitter to express her excitement over Cesaro's debut in the AEW.

The Man also tweeted out an image of Cesaro in his new AEW gear, further expressing her hype over the debut.

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The WWE isn't too keen on its talent promoting or hyping up opposing promotions. That's doubly true if said promotion is the brand's biggest competitor like the AEW. However, Lynch is one of the biggest stars in the WWE. Her status as one of the top heels in the company means that she has free reign to tweet her support of other brands.

Cesaro (or Claudio Castagnoli)'s debut in AEW has many wrestling geeks excited, and for good reason. The Swiss wrestler has always been one of the most over talents in the WWE, and yet fans felt he was never booked properly. Many felt that he was more than the upper-midcard wrestler WWE pegged him as.

Now, Castagonli has a chance to prove his true worth in the AEW and send a message to the WWE. Here's to hoping he pulls out his iconic Giant Swing at some point.