Sparks was reassigned to AHL Ontario on Wednesday, John Hoven of SiriusXM NHL Network Radio reports.
Sparks stopped 11 of 12 shots after replacing Jonathan Quick in the second period of Tuesday's 6-3 loss to the Golden Knights.
Sparks stopped 33 of 35 shots in Sunday's 3-2 win over the Capitals.
Sparks will guard the road goal Sunday versus the Capitals, Zach Dooley of the Kings' official site reports.
Sparks will be recalled from AHL Ontario and join the Kings for their game Sunday in Washington, John Hoven of SiriusXM NHL Network Radio reports.
Sparks is expected to start Thursday's home preseason game versus the Golden Knights, John Hoven of SiriusXM NHL Network Radio reports.
Sparks was released from his tryout with the Flames on Wednesday, per TSN.
Sparks was reassigned to AHL Stockton on Saturday.
Sparks will attend the Flames' training camp on a professional tryout offer.
Sparks was recalled on emergency basis from AHL Chicago on Sunday.