Joe Ledley reckons Scottish clubs could have a better chance of success in Europe if their domestic campaign started earlier.
Celtic are usually involved in the qualifying rounds of the Champions League and very often face teams at this stage who have already begun their domestic league campaigns.
It means the Scottish giants are often at a disadvantage in terms of match fitness, which will again be the case on Wednesday evening, when they face HJK Helsinki.
The Finnish side are halfway through their season and in good form after thumping KR Reykjavik 9-1 on aggregate in the last round.
A switch to summer football would allow the Scottish teams to have some match fitness before their European campaigns start, and Ledley feels this is a possibility that could be explored.
"If it is going to help us with the Champions League then yes, but it is obviously down to the Scottish FA to sort that out," he said.
"The other teams have got an advantage because they are all halfway through their season so it would be nice to get a couple of games under our belt going into the qualifiers.
"It will be difficult but our fitness levels are high. When we went to Germany (pre-season) it was more about fitness, but we have got the footballs out in the last week and we are confident after the Inter game on Saturday.
"Although it was a draw, it was a game against a quality team."