Tonight's edition of WWE Monday Night RAW from Madison Square Garden saw the former World Heavyweight Champion, Dolph Ziggler, making his shocking return as Solo Sikoa's mystery opponent in the "Last Time is Now" Tournament, which would decide Cena's retirement opponent for Saturday Night's Main Event.The Showoff received a huge cheer from the crowd when he returned to the red brand. Although Ziggler put up a tough fight against Sikoa, he ultimately fell short against the former Tribal Chief and lost the match.In this article, we will explore three reasons why Dolph lost to Solo on the flagship show at MSG:#3. Single appearance in WWELast week, on Friday Night SmackDown, Zack Ryder (aka Matt Cardona) was revealed as LA Knight's opponent in the "Last Time is Now" Tournament.Later, it was revealed that Ryder had not signed any contract with the company, and his appearance might be only a one-off. Ziggler's situation seems identical, and his WWE RAW comeback could be his only appearance, as he is signed to TNA and has been an active part of their roster. His return to the red brand could be just for one night.#2. The company didn't want to bury one of their top heelsSolo Sikoa and his stable, MFT, have been establishing themselves as one of the top heel groups on the active roster, and their leader losing to a returning superstar who is competing in TNA would have completely ruined their momentum.Therefore, Triple H and the creative team decided to have Ziggler lose in order to protect their heel star from getting buried.#1. Getting young talent overDolph Ziggler himself is a veteran with a nearly 20-year career with the Stamford-based promotion, and losing to The Street Champion was a perfect passing of the torch and an opportunity to showcase young talent like Sikoa.A win over a legend like The Showoff would elevate the leader of the MFT stable to become the ultimate heels in the company. Therefore, that could be another reason why the former WWE World Heavyweight Champion lost his return match.