Philippe Coutinho finally made his long-awaited Barcelona debut since joining from Liverpool earlier this month. The Brazilian playmaker came off the bench to replace Andres Iniesta and enthralled the crowd with a 25-minute cameo appearance as Barcelona overcame Espanyol 2-0 to reach the Copa del Rey semi-finals.Coutinho didn't fail to impress and was able to showcase his talent in that short performance, to give the fans something to remember. People later took to Twitter to talk about his debut, and here are some of the best tweets to come out of this incident:Coutinho is already better than Isco in my opinion.— Jimmy (@FCBJimmy_) January 25, 2018This is why Barcelona paid £140m+ for Coutinho rather than copping that bum Ozil on a free,the levels are staggering.— - (@davidluiz4i) January 25, 2018Coutinho against Espanyol today: Minutes played: 22Passes (Acc.): 25 (86%)Key passes: 2Chances created: 1Dribbles (completed): 2 (2)Duels won: 3— CE Stats (@CEStats) January 25, 2018Coutinho when he fully adapts will be a huge addition. Even now he's looked impressive and that was his first game with his new teammates AND coming back from injury. Busquets, Rakitić, Iniesta, Coutinho, Gomes, Paulinho. Sounds good.— Josip (@jperkovic93) January 25, 2018Me watching Coutinho... pic.twitter.com/8aYP6FEHbB— Zarry Hendrik (@zarryhendrik) January 25, 2018Imagine what Coutinho must have felt. Just being subbed on for Andres Iniesta is an honor let alone stepping onto the Camp Nou pitch for the first time in front of +80,000 spectators.— XH6 (@XaviAssist) January 25, 2018People really need to give Dembele a break. I'm seeing his name mentioned quite a lot now after Coutinho impressed in his debut. Dembele is 20, of course he'll take more time.— Josip (@jperkovic93) January 26, 2018Reminder that Coutinho left for the bigger club.— ᵁᴸᵀᴿᴬ® (@UltraAutistic) January 26, 2018Philippe Coutinho was on the pitch for just 25 minutes on his Barcelona debut, yet completed 24/27 passes, 2/2 dribbles & created 2 chances.He moved up a level this season at Liverpool,but Barcelona seems the perfect team to establish himself as 1 of the very best in the world. pic.twitter.com/p2sv3esXut— Premier League Panel (@PremLeaguePanel) January 26, 2018Coutinho and Iniesta over the years. pic.twitter.com/iBubl7wos2— Seleção Brasileira (@BrazilStat) January 26, 2018Coutinho looked confident and had some crisp touches. The close control and quick movement can be huge weapons, & he has that change of pace that allows him to escape his markers. Can't wait to see how & where Valverde ends up using him.— Jen Evelyn (@JenFCB) January 25, 2018