Arsenal goalkeeper Petr Cech has announced his retirement from professional football at the end of this season. The 36-year-old goalkeeper joined Arsenal from Chelsea in June 2015.Cech is one of the most legendary goalkeepers in this era. His career almost came to an end in October 2006 when he sustained a skull fracture after a collision with Stephen Hunt. However, he refused to give up and eventually ended up adding a host of trophies and memories to his sparkling career. Petr Cech has announced his retirement through a tweet where he stated:Having played 15 years in the Premier League and won every single trophy possible, I feel like I have achieved everything I set out to achieve. I will continue to work hard at Arsenal to hopefully win one more trophy this season.He elaborated: This is my 20th season as a professional player and it has been 20 years since I signed my first professional contract, so it feels like the right time to announce that I will retire. I am looking forward to seeing what life holds for me off the pitch.In reply, Arsenal tweeted:For your consummate professionalism, for being the perfect role model, for the 50 clean sheets, for your honesty, your integrity and for your inspiring work with the Arsenal Foundation, we want to say - thank you Petr Cech.The shot-stopper was brought to England in 2004 by Chelsea. The iconic goalkeeper has played 559 matches throughout his career while keeping 233 clean sheets. He has earned the most number of clean sheets (202) in the history of the Premier League.Cech won 4 Premier League titles, the UEFA Champions League, Europa League, 4 FA Cups and three League Cups for the Blues. He has also set a Premier League record for most clean sheets in a single season in 2004-05, when he managed to keep 24 clean sheets for Chelsea.The veteran signed for Arsenal in Summer 2015. He has made 110 appearances for them. Under Arsene Wenger, he won the FA Cup for Arsenal in 2017. With the Gunners, he won the Golden Glove for 16 clean sheets in the 2015-16 season. Here are a few Twitter reactions regarding his shock retirement. Petr Čech (202) is the only goalkeeper to keep 200+ clean sheets in the Premier League:Chelsea👕 333 games👐 162 clean sheetsArsenal👕 110 games👐 40 clean sheetsA goalkeeping legend. pic.twitter.com/0dSEW8wExT— Squawka Football (@Squawka) January 15, 2019Petr Čech defines class. Not every player can move from The Bridge to Arsenal & still be respected by Chelsea fans, but Petr is a different breed of class. Not a reptile but absolutely a legend. pic.twitter.com/RD9fWscoQb— Alex Goldberg (@AlexGoldberg_) January 15, 20195x FA Cup 4x Premier League3x League cup1x UEL1x UCLFrom saving us on numerous occasions to gifting us the best night in our club's history. Thank you Petr Cech. pic.twitter.com/COtnP5F9fT— ᴱᴰᴱᴺ (suspended at 12k) (@FutboIEden) January 15, 2019We may have signed him at the end of his career but I’ll always be grateful to Petr Cech for what he’s done whilst here, a model professional who’s had an unbelievable career, good luck with your retirement @PetrCech— MR DT © (@MrDtAFC) January 15, 2019He's kept the most clean sheets in Premier League historyHe's won every trophy possible during his time in England on the domestic & European stageHe holds the record for the most Czech Footballer of the Year & Czech Golden Ball winsWishing you a happy retirement, Petr Čech pic.twitter.com/qs50sW1J5t— FourFourTweet (@FourFourTweet) January 15, 2019Petr Cech most clutch/ best saves. • Petr Cech saves Chelsea vs Spurs • Cech Saves Chelsea in the FA Cup final from andy carrol • Cech saves Chelsea in the UCL final, one of the most clutch saves ever made • Cech makes one of the best saves ever vs Man UThe best Ever. pic.twitter.com/VzPMpi1fka— Pys (@CFCPys) January 15, 2019There was 2 minutes between when Robben’s penalty was awarded and taken. 2 minutes of mental torture to let the pressure of the occasion boil.But in the end all we heard was, “Cech saves”.Thank you for that massive performance and everything else, legend. Enjoy retirement. pic.twitter.com/Zrw4euRuUi— Ayden (@AddictedToCFC) January 15, 2019The legends are born from:This to thisPetr Cech saves the day. pic.twitter.com/UOITwbydek— Chelsea Indonesia (@chelseaindo) January 15, 2019Petr Cech’ll retire at the end of this season. He’s been a truly professional and role model on and off the pitch. First keeper in the league with 1000 saves and 200 clean sheets. Thanks for everything big Petr. 🔴pic.twitter.com/icnxOroDWu— Lacazettes (@Lacazettes) January 15, 2019Petr Cech and Unai Emery both gone at the end of the season pic.twitter.com/56jhaGCEO0— alex (#EOB) (@EOBalex2) January 15, 2019