<text>  Theo Walcott took to Instagram to show off his birthday cake from his Arsenal team-mates ahead of their Champions League showdown with Monaco on Tuesday night. Walcott turned 26 on Monday and Mesut Ozil was among those wishing the England international a happy birthday on social media. While the perfect present may be qualification for the quarter-finals, Ozil wrote on Twitter: Happy 26th birthday to my friend theowalcott Stayhealthy bestwishes Gunners Theo Walcott took to Instagram to show off his birthday cake from his Arsenal team-mates on Monday . Walcott turned 26 on Monday and Mesut Ozil was among those wishing the England star a happy birthday . Walcott, meanwhile, wrote on Instagram: Thank you to everyone for all the birthday messages today and a nice birthday cake surprise with the team. We know what he may be wishing for as Arsenal need to overturn a 3-1 deficit from their first leg in the Champions League last-16 tie at the Emirates. It sees a return to Monaco for manager Arsene Wenger, who was in charge of them between 1987 and 1994. Walcott left jokes around during Arsenals training session ahead of their Champions League showdown . Gabriel Paulista from left to right, Tomas Rosicky, Per Mertesacker, Santi Cazorla, Alexis Sanchez, Walcott and Mesut Ozil pose during training . VIDEO We can do it says Wenger ahead of Monaco crunch match . 