Steven Gerrard’s Ibrox side Glasgow Rangers have overtaken Brendan Rodgers’ Celtic men in the Scottish Premiership table.
Celtic and Rangers have both been extremely busy over the season so far, with the sides required to play in Europe.
Celtic’s form has been inconsistent in the league so far this season, and Rangers have now overtaken them.
Steven Gerrard’s men are sat at the top of the Scottish Premiership table, after playing 17 games.
Celtic were beaten 2-0 by Hibernian at the weekend, while Rangers managed to pick up a 1-0 victory over Aberdeen.
And Grezda feels that both Rangers and Celtic could be playing better if they had more time between games.
“Celtic are having a hard time too because they’re playing every three days, so I think opponents try to take (advantage of) these opportunities,” Grezda said.
“The league is complicated a little but, we’ll see in four games it’ll be more clear than it is now.”
Rangers are now out of Europe, so they will have fewer games to play in 2019.
Celtic, on the other hand, will continue in the Europa League in February, after making it out of their group.