Gervinho netted the only goal of the tie.
Garcia said: "At times a team has a strategy, but that cannot be put into action and they are obligated to work on the counter-attack. I think tactically Roma worked very well this evening.
"This was a game our fans, and perhaps all of Italy, were waiting for. We saw the Olimpico full and that's what football is all about, seeing the supporters give their all to cheer us on. I am proud of the Roma fans tonight.
"We are competitive, but also know Juve are a great side who won two consecutive Scudetti. We did not expect Juve to have 55 points after 20 games, as 47 is an exceptional tally already. Tonight we saw we have the abilities and the talent to beat a side that is one of the biggest clubs in Italy.
"How strong are Roma? We'll see at the end of the season, but we have to keep pushing and see where we end up. I am truly satisfied."
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