Coming from one of China's three "Stove Cities" had its benefits for Li Na on another scorching day at the Australian Open, where she completed back-to-back wins over the two youngest players in the draw to reach the third round.
Li will next play 16-year-old qualifier Belinda Bencic of Switzerland, who beat 43-year-old Kimiko Date-Krumm of Japan in three sets earlier Monday.
The 32-year-old American finished off a dominant year, in which she also won the French and US Opens, by scooping up her 11th title of 2013.
Li had to break Lisicki twice in each set, overcome seven double faults, and stave off six out of eight break chances to triumph.
Former French Open champion Li, China's first semi-finalist at the U.S. Open, admitted that she experienced a bout of nerves when she hit the Arthur Ashe Stadium court.
The first Chinese to reach the last four at Flushing Meadows, a shell-shocked Li crumbled to a 6-0 6-3 loss in 87 minutes on Arthur Ashe Stadium's center court.
Williams, the top-seeded defending champion, will look to extend a dominant run through the women's draw against fifth-seeded Li Na of China, who became the first Chinese to reach the last four at the U.S. Open.
The 31-year-old, fifth-seeded Li pumped both fists in joy after 24th seed Makarova sailed a backhand long to end the two-hour, 20-minute match at Arthur Ashe Stadium as the crowd showered her with cheers.
A classic match-up between the powerful Li and the crafty Radwanska ended with the elastic-limbed Pole winning 7-6(5) 4-6 6-2 on her eighth match point.
Wimbledon might not be her most successful tournament but Li says she is feeling "totally relaxed" ahead of next week's grasscourt grand slam, thanks to the flying visit home.
Azarenka overcame an often hostile crowd to beat Li Na 4-6, 6-4, 6-3 in a dramatic final.
Brief biographies of the women's finalists at the 2013 Australian Open.
The 23-year-old Belarusian holds a 5-4 career record against former French Open champion Li, including the last four of their encounters.
China's Li Na declined to pass judgement on Victoria Azarenka's controversial medical time-out during her Australian Open semi-final match, but said she would not do it herself when match points were at stake.
"I think she played a really great match," Sharapova told reporters. "She was certainly much more aggressive than I was, dictating the play. I was always on the defence.