That's why he added this week's Italian Open to his schedule.
"I was in the mood to play," Federer said Tuesday after a practice session on the Foro Italico's Campo Centrale. "Would I rather practice or play matches? ... There would be excitement, more excitement than me coming to a practice court in Switzerland.
"Honestly, I love to play matches. Regardless of what happens here, I just think it's good for me to play matches at this stage," Federer added.
After reaching the Madrid Open quarterfinals last week upon his return to clay after a two-year absence, Federer went to Switzerland. He said the cool weather at home also convinced him to make the trip to Rome.
"I felt like playing somewhat maybe more sea level conditions would be good for me," Federer said.
Federer begins play Wednesday against 75th-ranked Joao Sousa, who saved four match points before beating Frances Tiafoe 6-3, 6-7 (3), 7-6 (4) Tuesday. Federer is in the same half of the draw as eight-time Rome champion Rafael Nadal.
"I'm so far away in the draw," Federer said of a possible semifinal matchup with his longtime rival. "I have other problems first getting there."
Federer is a four-time runner-up at the Italian Open, which he's never won, making it one of the few significant trophies he hasn't claimed.
Federer is preparing for the French Open, which starts in less than two weeks.
Federer had initially planned to play only in Madrid before Roland Garros. When he announced on Saturday that he was coming to Rome, Italian Open organizers raised prices for remaining tickets to Wednesday's session.
"I heard some fans clearly were not happy about it. That's obviously disappointing to hear. They rewarded the fans who bought tickets earlier, which is sort of strange, but OK," Federer said. "I just really hope it doesn't take away the fact I'm really happy to be here. ... I'm pumped up to play well. My excitement couldn't be bigger."
"Always enjoyed playing in Italy. It's probably the country I've played the most junior tennis in," he said. "Coming down from Switzerland to the clay courts was always a logical junior trip. They have very strong junior tournaments here."
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