Greg Rusedski could discover later today whether he will be banned for his positive drugs test.
Rusedski, who protests his innocence, tested positive for nandrolone last year and faces a two-year ban, with the Association of Tennis Professionals potentially giving their verdict as soon as this afternoon.
Great Britain's Davis Cup squad has been anchored by Rusedski and Tim Henman in recent years but David Felgate, the Lawn Tennis Association's performance director, is encouraged by the developing talent in this country.
On Rusedski's potential suspension, he told the London Independent: "I really hope it doesn't come to this but if the worst happens and we lose Greg, we will be able to handle it.
"You only have to go down to Queen's Club to see the environment in which our next level of players are working. The courts are buzzing. Picking the Davis Cup team should be a headache and we're moving towards that."