The Davis Cup is the premier international team event in men's tennis. And this year's Davis Cup will be played between Great Britain and Belgium.
However, the final is set to be held in Ghent, which is 35 miles away from Belgium's capital, Brussels which is also under the country's highest security alert.
But according to the Flemish Tennis Federation (FTF), everything will go as planned.
Gijs Kooken, the chief executive of the FTF, said during an interview with BBC sports,
"It is an event with international exposure, with 13,000 spectators a day, so it is a risk event, of course, in the current situation - but I'm very confident in our government. Of course you never can predict what will happen next, but I would be surprised if it was cancelled. I'm quite confident that we will play next weekend."