"By the time he's 22, 23 or 24 I think he will be a top-10 player," said captain Leon Smith of team-mate Kyle Edmund who helped Britain through to the Davis Cup semi-finals.
Edmund, Britain's number one player in the tournament, beat Serbia's Dusan Lajovic in straight sets in Belgrade on Sunday in only his second Davis Cup appearance.
The first had been memorable. The 21-year-old allowed David Goffin only four games in the opening two sets of the first rubber of last year's final in Ghent. The next three sets went convincingly Belgium's way as Edmund started cramping, but his forehand left quite an impression on the Belgian.