Celtic assistant Johan Mjallby is hoping that James Forrest can stay fit and help ignite the club's push for domestic honours.
The Scotland winger, back from a hamstring complaint, replaced Nir Biton at the interval during Saturday's game against Hearts and his introduction added some much-needed zip to the home side's play.
Kris Commons eventually got the breakthrough and Forrest notched in injury time to seal a 2-0 win and extend the unbeaten league run to 16 games this season.
"When James Forrest came on for the second half, he gave us the spark and I think we controlled the game," Mjallby said.
"He was always a threat for us. A fit James Forrest will always start every game but it is hard keeping him fit this season.
"We need to try to keep him fit and have him more involved in the team because he is a special player for us."
Mjallby acknowledged that midfielder Joe Ledley and forward Georgios Samaras could be on their way out.
Both players' contracts are up at the end of the season but Mjallby is confident that attitude will not be a problem in the coming months.
"There is no concern whatsoever," he said. "They are two great professionals and I think Joe Ledley has been playing very well recently.
"The way I understand it is that there are offers on the table and the sooner we get an answer from them the better because we need to look further ahead, we can't just look towards the next couple of weeks.
"If they are not likely to be here, then we would like to get some money for them and would probably look for replacements in those areas."