If Federer accomplishes the feat, it will be the first time he has lifted 10 trophies at a single tournament. The Alsace-born 28-year-old won the Wimbledon men's doubles alongside Nicolas Mahut three years ago.
Roger Federer is coming off a straight sets win over Pierre-Hugues Herbert that took 18 games to decide.
Goffin has won only one of his eight previous meetings with Federer, who lost last year's final at the grass-court tournament to Borna Coric.
The unseeded Goffin will face Matteo Berrettini in the last four after the Italian, a champion in Stuttgart last week, stayed in the hunt for back-to-back titles with a 6-2 7-6 (7-4) defeat of third seed Karen Khachanov.
Gold Near 6-Year High on Fed Stimulus Hints
Among other precious metals, silver dipped 1% to $15.26 an ounce , while platinum was up 0.5% to $806.27. Based on its market cycles, gold has had a nice run but higher prices are still possible.
Trump Says New Iran Sanctions Begin Monday
Tehran claimed the unmanned United States aircraft entered Iranian airspace early on Thursday morning. He said the downing of the US drone was "probably intentional" - contradicting what he said Thursday.
Israel analysts: Weak US attack on Iran could spark retaliation against Israel
The Trump Administration has blamed Iran for the attacks, which damaged six ships in the waters off the Emirati port of Fujairah. The sanctions bar U.S. companies from trading with Iran, but also with foreign firms or countries that are dealing with Iran.
Gilles Simon survived another marathon battle and advanced to the finals at The Queen's Club in London with a 6-7 (4), 6-4, 6-3 upset of No. 4 seed Daniil Medvedev of Russian Federation.
Home favourite Zverev was playing with a swollen knee after slipping and hurting himself in the first round, and the Halle crowd watched on in dismay as he struggled to find his rhythm against world number 33 Goffin. "It was maybe exactly what I needed going into the finals now".
The Swiss tennis star Federer had a tough time in another three-set battle at the quarterfinals against Roberto Bautista-Agut, but he managed a 6-3 4-6 6-4 victory to reach his 15th semi-final in Halle. Although they both have played more than 200 tour-level doubles matches, they have not competed against one another on the doubles court, either. But Federer used a dagger-like backhand slice at times to bring the Frenchman into the forecourt on the Swiss' terms, making it more comfortable for Federer and less so for Herbert.
"I have to try and do what I can do and that is prepare and do as best that I can tomorrow and try and play a good Tennis match and if I win, it's a bonus". I thought it was a very solid performance from me.