Mikel Arteta saw Arsenal leave Olympiacos in charge of their Europa League tie following a good win – but admitted his side were once again their own worst enemy as a defensive error almost proved costly. The Gunners will defend a 3-1 lead at the Emirates Stadium next week and were good value for their round of 16 first leg win in Greece. Please subscribe, like the video and share wherever you can! **DO NOT copy and re-upload any part of this video anywhere otherwise copyright strikes will be made! You do not have my permission** I have all the necessary rights to use this footage, my footage is licensed through agencies, please contact me if you're unsure, you can find my email address on my 'about' page. To make sure you don't miss any of my videos on this and my other channels please : Subscribe here!: http://bit.ly/MrBeanSub Twitter: http://www.twitter.com/BeanymanSports Instagram: https://www.instagram.com/beanymansports Facebook: https://www.facebook.com/BeanymanSports Website: http://www.BeanymanSports.com If you want to help with the costs involved with running the channel you can support me on my Patreon here = https://www.patreon.com/BeanymanSports