"Throughout the match there are little momentum waves, he played some good points and hit some spots on serve".
In Osaka, Japan took a stranglehold of their Davis Cup world group playoff with Brazil on Friday as Yuichi Sugita and Go Soeda won the opening day's singles, albeit in contrasting fashion.
Nick Kyrgios fired shots at fellow Australian Bernard Tomic, saying that his former Davis Cup team mate has "lost his way" and "doesn't make sense".
"As a team if you're going to win the whole thing, you need matches like this".
Belgian's medical team have been working round the clock to ensure Goffin's presence after the Belgian star injured his left knee at the US Open.
Goffin relied on some masterful forehands to win the second set and level the match.
Undeterred, Kyrgios produced a thumping forehand victor from the first point of the fourth, which set him up for the first of three breaks as Darcis wilted.
The world No.12 was made to work hard for his victory by the 185th-ranked Queenslander, who was only called into the team by Hewitt on Thursday. Goffin has a terrific Davis Cup singles record of 17-3, and 7-2 on a clay court.
Jo-Wilfried Tsonga saw off Davis Cup debutant Laslo Djere to level for favourites France, who are trying to win a first Davis Cup title since 2001.
There was a huge shock in the first rubber of the other semi-final, as Lajovic blasted his way past Pouille to give the Serbs the lead over France.
Australia's Nick Kyrgios, world number 20, will face Steve Darcis in Friday's second singles match before Saturday's doubles between the home side's Ruben Bemelmans and Arthur de Greef and John Peers and Jordan Thompson and the reverse singles on Sunday.
Beaten semi-finalists past year, France were dealt an early blow as Lajovic shocked world number 22 Lucas Pouille 6-1 3-6 7-6 (9-7) 7-6 (7-5).
The 21-year-old has battled a litany of injuries over the last 18 months but has made some encouraging strides this year on his path to returning to the world's top-70 including reaching the final of the Los Cabos Open in Mexico last month.
Of the four semi-finalists Serbia are the most recent champions - when Novak Djokovic inspired then to victory over France in 2010 - but they are without their three highest-ranked players, most notably Djokovic whose season is over.
But Pouille insisted despite their rankings superiority the semi-final was no foregone conclusion for France.