The British and the Germans played each other only a month and a half ago, on Davis. Then Germany turned out to be stronger, now the British get a chance for revenge. A lot in this confrontation depends on the match of the second numbers, Struff and Evans.
Ian Lennard is renowned for his solid, well-delivered serve, often running to the net. He does his best for the national team, he represented the country in all national team tournaments over the past two years. On Davis, it was Struff who outplayed British leader Norrie, thereby deciding the overall outcome in favor of his team.
Evans plays great on the open hard, won many titles, including the first competition last season in Melbourne. Note that the German and the British have personal meetings in a very tight fight, always with a tie-break. Considering that both are serving, we consider it logical to play the total, which still looks too low.