Watson missed several matches after breaking an ankle last season. He started against the Force on Saturday but had to leave the field during the first half of his team’s 22-10 win.
Kings director of rugby Alan Solomons is confident his most experienced player will be fit by next week. At least Watson has time to recover because the Kings have a bye this weekend.
“Luke took a knock to the throat and it affected his breathing,” said Solomons. “The team doctor felt it was better to take him off.”
Watson’s replacement, Jacques Engelbrecht, had a storming game and is now a strong candidate for a starting berth against the Sharks.
Engelbrecht’s battering-ram style of play tested the Force’s defence. After Watson left the field vice-captain Andries Strauss took charge while lock Steven Sykes led the forwards.
The Kings’ second Super 15 match will be a home one too, at Nelson Mandela Bay Stadium on March 9. The stadium drew a crowd of 30000 on Saturday and they are hoping for a full house of just over 48000 against the Sharks.