Inter Milan defeated AC Milan by a scoreline of 2-0 in the first leg of the UEFA Champions League semi-finals. Fans on Twitter erupted as they watched the match at San Siro play out.The Nerazzurri took a two-goal lead early in the first half. Former Premier League stars Edin Dzeko and Henrikh Mkhitaryan netted in the eighth and the 11th minute, respectively, for the Nerazzurri.While Lautaro Martinez appealed for a penalty during the first half, his claims were denied and the Argentine's fall inside the penalty area was deemed as simulation.Despite having the majority of the possession, the Rossoneri failed to manage any shot on target. Inter's lead remained intact.Simone Inzaghi's team won the first leg and look the favorites to reach the final this season. Here are some of the best reactions across Twitter as AC Milan and Inter clashed in the first leg of the UEFA Champions League semi-finals:Ifeanyichukwu Chris Akashili@BloggerboyyZlatan Already Pissed Off... This Wasn't Expected Of Milan 🥵 #MilanInterZlatan Already Pissed Off... This Wasn't Expected Of Milan 😢🥵 #MilanInter https://t.co/xEM81e5e2mESPN FC@ESPNFCZlatan can't believe what he's seeing from AC Milan 3290225Zlatan can't believe what he's seeing from AC Milan 😅 https://t.co/XyBShMLvNTDRIBO⚽@Dribo07Ac Milan's attempt to reach the UEFA FinalAc Milan's attempt to reach the UEFA Final https://t.co/VO9D2wAFNzExiled_YT_2 #APorLa15@Exiled_YT_2When Saelemaekers is your best player you have a serious problem2When Saelemaekers is your best player you have a serious problemPOOJA!!!@PoojaMediaNapoli should be watching this AC Milan & blaming themselves44823Napoli should be watching this AC Milan & blaming themselvesTopBets Kenya@TopbetsKEnter Lukaku. He's about to play a Champions league final before Ibrahimovic #InterMilan #uefachampionsEnter Lukaku. He's about to play a Champions league final before Ibrahimovic #InterMilan #uefachampions https://t.co/KiEdhGQHRaFootballJOE@FootballJOEThe AC Milan defence tonight16121The AC Milan defence tonight https://t.co/ymAozmq07c𝐂𝐚𝐬𝐮𝐚𝐥 𝐔𝐥𝐭𝐫𝐚 𝐎𝐟𝐟𝐢𝐜𝐢𝐚𝐥@thecasualultraThe Derby della Madonnina between AC Milan & Internazionale tonight 🤩2186358The Derby della Madonnina between AC Milan & Internazionale tonight 🤩🇮🇹 https://t.co/M1ZoaxbK6GTroll Football@TrollFootballAC Milan without Rafa Leao171731692AC Milan without Rafa Leao https://t.co/xDk6GIWIMwTroll Football@TrollFootballAC Milan bus against Inter9707755AC Milan bus against Inter https://t.co/ZsVmm5W8AiEssel@EsselguyAc Milan without Rafael Leao820123Ac Milan without Rafael Leao https://t.co/JtLCOeydtDFront Office Sports@FOSToday, AC Milan and Inter Milan are facing off in 'The Derby della Madonnina.'The two clubs share a home — the 76,000-seat San Siro — the largest stadium in Italy.The amount of ticket requests could've filled the venue 26 times over, per @repubblica.15614Today, AC Milan and Inter Milan are facing off in 'The Derby della Madonnina.'The two clubs share a home — the 76,000-seat San Siro — the largest stadium in Italy.The amount of ticket requests could've filled the venue 26 times over, per @repubblica.https://t.co/vvVzC7sRtANoodle Vini@vini_ballJust realized Barcelona could've had a run of Porto, Benfica and Milan without Leao to the UCL final but they bottled it 48027Just realized Barcelona could've had a run of Porto, Benfica and Milan without Leao to the UCL final but they bottled it 😭😭 https://t.co/m73PXYOWmgNoodle Vini@vini_ballMilan in the UCL without Rafael Leao 113588Milan in the UCL without Rafael Leao 😭 https://t.co/arbtgyIgEpNoodle Vini@vini_ballSo sad to see man, especially for someone so likeable like Leao 🥲124546So sad to see man, especially for someone so likeable like Leao 🥲 https://t.co/9vfDnPlVnyM@m_tacticianleao playing on thursday nights next szn whilst nelli makes movies w Vini15412leao playing on thursday nights next szn whilst nelli makes movies w Vini https://t.co/LacO7v1Kq8SANSO ⭐️⭐️⭐️@NapoliSansoneMilan without Leao10120Milan without Leao https://t.co/dKk91vatBjSANSO ⭐️⭐️⭐️@NapoliSansoneRafa Leao on why he signed his contract extension:112Rafa Leao on why he signed his contract extension: https://t.co/eDhHUkiJhj☾@r10drygosAC without leao63AC without leao https://t.co/PiEgVC1J8V#PervertzOut@ChxppaSkiLautaro Martinez when he's not playing for Argentina18228Lautaro Martinez when he's not playing for Argentinahttps://t.co/AUrxR6lNJ4LiveScore@livescoreLautaro Martinez made more tackles than any other player while he was on the pitch (5) Not bad for a forward 201Lautaro Martinez made more tackles than any other player while he was on the pitch (5) 👀Not bad for a forward 👊 https://t.co/MBnX8NbPfNYawStylish✊🏾💪🏾@Menstrual_PainsI staked Lautaro Martinez to score them sub am3919I staked Lautaro Martinez to score them sub am https://t.co/KNM29hQphMAziz #LefOUT@aziz_zghPioli tonight7622Pioli tonight https://t.co/zjqz445H1wLiLJerrySZN 💙🖤@LiLJerrySZNPOV: you’re Pioli and you give 0 minutes to CDK, but 72 minutes to Messias and 30 minutes to Thiaw in the semi finals of the UCL.#ACMINT63POV: you’re Pioli and you give 0 minutes to CDK, but 72 minutes to Messias and 30 minutes to Thiaw in the semi finals of the UCL.#ACMINT https://t.co/P4Uro9e4yTShefqet Fejzo@ShefqetFejzo11@ChampionsLeague Exclusive footage of Stefano Pioli’s team talk at halftime:558@ChampionsLeague Exclusive footage of Stefano Pioli’s team talk at halftime: https://t.co/1gfqSaFK4R#rip@kimpmbewhat is he doing man go terrorize pioli into making good decision9what is he doing man go terrorize pioli into making good decision https://t.co/pvc1vh7rCEInter Milan have the upper hand over AC Milan heading into the second leg of the UEFA Champions League semi-finalsGiven the scoreline of the first leg, Inter are the team with the upper hand to reach the UEFA Champions League final this season. The second leg between the two sides will take place on May 16.The two teams have been very close on the domestic circuit this season. The Nerazzurri are fourth with 63 points from 34 matches. Pioli's side are fifth with 61 points from 34 matches.If the Rossoneri don't win the Champions League this season, they look set to miss out on the competition next season. It could be a massive blow for the club considering their performances in the tournament this term.However, with Rafael Leao in their ranks in the second leg, the Rossoneri might put up a better fight. The Portuguese attacker, who has been one of the best players for the team this season, was dearly missed by Pioli's side.Both clubs are searching for their first spot in the final for a long time. Milan haven't reached the final since winning the competition in the 2006-07 season. Inter's last final appearance came in 2009-10 when they defeated Bayern Munich in Madrid to win the trophy.Whether there is more drama to unfold in the second leg remains to be seen. Fans will keep a keen eye on how the match on May 16 plays out.