Andy Murray faces a scan on the neck injury which rendered him a frustrated spectator as Great Britain suffered a grim Davis Cup defeat to Israel at Eastbourne.
Murray was hurt when diving for a lost cause in his doubles match on Saturday night and he will delay his departure to the United States, with five weeks remaining until the US Open.
He and partner Jamie Delgado were beaten by Israel's world-ranked 12th pairing of Andy Ram and Jon Erlich on Saturday, 24 hours after Murray had been taken the full distance to beat Ram in singles.
And yesterday it was Delgado's turn to lose a five-set singles clash, the fourth rubber of the match and one from which Noam Okun's victory secured victory for Israel in the three-day contest.
Murray, 19, had earlier arrived at Devonshire Park wearing a brace on his neck and with mother Judy declaring: "He's had a sleepless night and was in quite a lot of pain but we are hopeful it is not going to prove too serious."
However, the news regarding Murray came as another blow which British tennis could have done without.
The shock 3-2 defeat by Israel - Britain's third loss in a row - now means the team captained by Jeremy Bates face a relegation play-off in Euro-Africa Group One against Ukraine in Kiev in September.
Bates is likely to resist any moves to reinstate the established partnership of Tim Henman and Greg Rusedski for that clash, even though this was probably Britain's worst defeat since that pair featured in a 3-2 defeat against Ecuador at Wimbledon in 2000.
Rusedski, who will be 33 in September, missed the East-bourne match due to a hip injury and Henman has retired from Davis Cup tennis, although some believe he could be enticed back.
Despite the heroics of the shaven-headed and bearded Delgado in fighting back from two sets down to within a whisker of beating Israel's No 1 player Okun - after being called upon as a replacement for injured Murray - Israel were the team celebrating.
Okun's victory gave them a 3-1 lead and meant the final match was a dead rubber. For the record, Murray's fellow Scot Alan Mackin beat Israel's fourth-string player Dekel Valtzer 6-1, 6-2.
But Bates insisted: "This is a team for the future and I'm proud of what the guys produced on court over the last few days.
"Sure, it is a big disappointment when you lose but I can't see that those players could do any more than they did.
"They put their hearts and souls into it. I've seen so much commitment from them it makes be proud to be captain, a privilege for me.
"If that's what British tennis is all about then I think we should all be enthused about what we can achieve in the future, and I think the LTA (Lawn Tennis Association) should support those players who are prepared to put themselves out there.
"The Davis Cup is a different kind of pressure from individual tournaments and although we have had a frustrating time again we know we have the ability that could have easily won this one."
Bates was clearly talking about the performances by Murray in coming back from the jaws of defeat to beat Ram on Friday night to square the tie after Alex Bogdanovic lost tamely in three sets to Okun, and Delgado's fighting spirit in both doubles and singles.
The 29-year-old Delgado, from Birmingham, threatened one of the bravest comebacks of all time after falling two sets behind.
There were real hopes of Britain saving the match when he won a tie-break for the third set and then played Okun - ranked 157 places above him at 270 on the ATP computer - off the court to run out a 6-2 winner of the fourth.
But Delgado, who was seeking his first Davis Cup singles win in five attempts, could not sustain his revival and went down 3-6, 4-6, 7-6, 2-6, 3-6 in three hours and 41 minutes.
He said: "I'm unbelievably disappointed but when I look back on the last couple of days I won't be able to think of any other two days like it for me, where I've lost two five-setters but given it everything.
"It will be a positive for me. I got the adrenaline going and gave it my best shot but it was not quite enough."
Delgado finished his match in tears, but received a consoling hug from the stricken Murray, who he had outshone in the doubles rubber, and a massive ovation from the Eastbourne crowd.