Vinicius Jr sent social media into meltdown on Wednesday night after wiping his entire Instagram account clean as uncertainty over his Real Madrid future continues to dominate the summer transfer window.The Brazilian winger, who has been strongly linked with Arsenal in recent weeks, removed every post from his profile, deleted his biography and even took down his profile picture. Despite the dramatic move, his following continued to rise, climbing to more than 64 million followers.The timing has inevitably fuelled fresh speculation over his future at the Bernabeu.Vinicius has entered the final year of his Real Madrid contract and, although the Spanish giants have tabled an improved extension worth around £19million per season, an agreement has yet to be reached.Arsenal are closely monitoring developments and are believed to have expressed an interest in the 26-year-old should negotiations ultimately collapse.The Premier League champions are eager to strengthen their attack and have identified Vinicius as one of the world’s elite forwards.Real Madrid, however, remain increasingly optimistic that the Brazil international will commit his long-term future to the club.Vinicius Jr sent social media into meltdown on Wednesday night after wiping his entire Instagram account clean as uncertainty over his Real Madrid future continues to dominate the summer transfer window | GETTYSenior figures including general director Jose Angel Sanchez and chief scout Juni Calafat met with representatives from Vinicius’ camp in Madrid on Wednesday as discussions continued over a new deal.New head coach Jose Mourinho has also made it clear that the winger remains a central part of his plans heading into the new campaign.Nevertheless, Vinicius’ decision to erase his Instagram presence has prompted widespread speculation among supporters.While a complete social media reset is not unusual in modern football, particularly before a new season, such moves are often interpreted as signalling a fresh chapter or reflecting uncertainty surrounding a player’s future.Vinicius Jr has just a year left on his Real Madrid contract | GETTYWhether the timing is purely coincidental or carries greater significance remains unclear.The development comes just days after Vinicius returned to Real Madrid following his post-World Cup break and reported for pre-season training under Mourinho.Speaking to their in-house television channel after returning to the club’s training base, the Brazilian insisted he was enjoying life under the Portuguese manager.”It has gone very well, getting to know the new coach and the new players, and training very hard,” he said.”Mourinho wants me to be as I have always been: happy, cheerful and playing my football.”Vinicius Jr is back in training at Real Madrid following his exploits at the World Cup | GETTYDespite those positive comments, Arsenal remain alert to any opportunity that may emerge before the transfer window closes.Manager Mikel Arteta has already promised supporters that the club will be “very ambitious” in the market after securing the Premier League title, and Vinicius would represent one of the biggest signings in Arsenal’s history.One of the final obstacles in contract talks has reportedly centred on the structure of Vinicius’ new agreement, particularly the signing-on package.Real Madrid’s latest proposal is believed to have narrowed the gap considerably and strengthened confidence inside the club that a compromise can be reached.