Chelsea tightened their grip on third place in the Premier League with a hard-earned 1-0 victory over West Ham United, with Christian Pulisic coming off the bench to score a vital winner.It seemed like West Ham would eke out a 0-0 stalemate, having put up a resolute defense all game until the latter stages of the London clash. Michael Dawson, the Hammers' only fit center-half, was then adjudged to have brought down Romelu Lukaku in the box to earn Chelsea a penalty.After being given a yellow card, referee Michael Oliver would then consult VAR and brandish a red card for the English defender instead. Jorginho stepped up to take the penalty but placed a tame effort into the arms of Lukasz Fabianski.Just when it seemed the opportunity to take all three points had passed them by, Marcos Alonso, who had been impressive all day, pulled the ball back into the West Ham box for Pulisic to sweep home.Jorginho's blushes were spared as Tuchel's men earned a crucial three points, with Pulisic sending Twitter into hysteria.Here are some of the reactions:Dubois@CFCDUBoisForget Lebron James, Christian Pulisic is the Michael Jordan of soccer.3537372Forget Lebron James, Christian Pulisic is the Michael Jordan of soccer.Gary Lineker 💙💛@GaryLinekerThat penalty from Jorginho brings back a few memories. 🤦🏻‍♂️217482That penalty from Jorginho brings back a few memories. 🤦🏻‍♂️🦅@xLoniiiiJorginho that IS your whole brand what happened 🤣🤣 twitter.com/xloniiii/statu…🦅@xLoniiiiBruno that was your whole brand last season what happened 193Bruno that was your whole brand last season what happened 😭😭Jorginho that IS your whole brand what happened 🤣🤣 twitter.com/xloniiii/statu…Don Hutchison@donhutch4Hahahahahahahaha the state of Bruno pen and now Jorginho pen 🤣🤣🤣🤣 why make a hard thing even harder with stupid run ups 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣15415Hahahahahahahaha the state of Bruno pen and now Jorginho pen 🤣🤣🤣🤣 why make a hard thing even harder with stupid run ups 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣‏ً@IfcjosephThe penalty hipsters both missed this weekend👁91The penalty hipsters both missed this weekend👁Patrick@OminousOxJorginho gives me so much happiness1Jorginho gives me so much happiness😭😭Mr Anderson 🇷🇸🎞@imakankshBruno liteBruno liteTrey@UTDTreyTHAT WAS BY FAR WORSE THAN BRUNO'S MY GOD 1813101THAT WAS BY FAR WORSE THAN BRUNO'S MY GOD 😭EiF@EiFSoccerThat penalty from Jorginho is one of the worst penalties you will ever see. Fabianski could’ve gone the other way, grabbed a cup of tea, and still saved that. Just awful.12512That penalty from Jorginho is one of the worst penalties you will ever see. Fabianski could’ve gone the other way, grabbed a cup of tea, and still saved that. Just awful.Julien Laurens@LaurensJulienOne of the worst penalties ever. What was that from Jorginho????29026One of the worst penalties ever. What was that from Jorginho????CFCDaily@CFCDailyPULISIC JUMPS IN THE MATTHEW HARDING WITH THE FANS201499PULISIC JUMPS IN THE MATTHEW HARDING WITH THE FANSLiam Twomey@liam_twomeyBig, big goal from Pulisic. Lovely cutback by Alonso. Chelsea really needed that #CFC41834Big, big goal from Pulisic. Lovely cutback by Alonso. Chelsea really needed that #CFCAlex Goldberg@AlexGoldberg_Great drive from Mount, great assist from Marcos Alonso & great finish from Pulisic.That was huge.108070Great drive from Mount, great assist from Marcos Alonso & great finish from Pulisic.That was huge.TheRealMood@CFC_TheRealMoodGet in Pulisic!!!!!!!!!!!!3129Get in Pulisic!!!!!!!!!!!!ke@FrelloThingsHavertz is a service reliant player, pairing him with net negatives like Mount and Werner makes him redundant too.151Havertz is a service reliant player, pairing him with net negatives like Mount and Werner makes him redundant too.der Purist@Upper6ixI've decided I won't pretend anymore to rate Mount, he's garbage.387I've decided I won't pretend anymore to rate Mount, he's garbage.Johyan@JohyanCruyffI’m getting sick & tired of Mount having the option to play someone in but takes a shot instead12524I’m getting sick & tired of Mount having the option to play someone in but takes a shot insteadBCT@BadChelsTakesJorginho what a player man he just wanted some entertainment for the fans after that Mount shitshow 556Jorginho what a player man he just wanted some entertainment for the fans after that Mount shitshow 😍Gulic@Gulic8Mount today121Mount today https://t.co/TO9Ewa7zkHChelsea finally broke through West Ham's stern defense late in the gameChristian Pulisic came off the bench to score a invaluable goal for Chelsea late in the game against WHUIt had been a bit of a struggle on the afternoon for the Blues, with West Ham putting on an admirable defensive display. Much had been said about David Moyes' decision to put Declan Rice on the bench given the rumors linking him with a return to Stamford Bridge this summer.Michael Dawson had a great game up until his red card offense, with the Hammers succumbing to the pressure eventually. Jorginho's penalty was woeful and having not started the game, he'll eye a return to Tuchel's starting XI in the games ahead.But with an effort such as that, he can't expect to be coming back into the fold any time soon. On the whole, Tuchel's men probably just deserved their victory given their strong second-half performance.Next up for Chelsea is a trip to Old Trafford to face a Manchester United side who are seemingly at rock bottom.Also Read: "One of the best players I have played with" - Kai Havertz singles out Chelsea teammate for special praise