Walcott took to Twitter to post a series of images that showed the extent of the damage suffered by his knee. The first picture shows the Arsenal forward's leg in light bandages just after surgery. The next image is Walcott's knee with a number of gashes, and the last picture shows his fully-healed leg which is left with a large scar. Walcott posted the image with the caption: 'Over 4 months since op - knee getting stronger every day'. The Arsenal forward was taken off on a stretcher during their 2-0 win over Tottenham at the Emirates in the FA Cup third round, when he trod on the ball during a challenge with Danny Rose. As he left the pitch, he aimed a cheeky salute to the Spurs fans, reminding them of the score. This prompted an angry reaction and some visiting supporters threw coins, some of which hit the paramedics carrying Walcott from the field. He managed six goals in 18 appearances for Arsenal before injury ruined his season and World Cup chances. Without him the Gunners won the FA Cup, their first trophy for nine years. Having made his international debut in 2006, Walcott has scored five times for England but missed out on their World Cup squad four years ago.