Great Britain trail 2-1 in their Fed Cup World Group II play-off in Romania after Simona Halep beat Johanna Konta in Sunday's opening match.
The hosts were without captain Ilie Nastase after he was banned on Saturday for swearing at the umpire, Konta and her captain Anne Keothavong.
Halep seemed unaffected as she beat Konta 6-1 6-3 in impressive style.
GB will lose the tie if Heather Watson is beaten by Irina-Camelia Begu in the next match before the doubles rubber.
More to follow.