Celtic have underwhelmed in Europe in recent campaigns.
Celtic will look to qualify for next season's Champions League by winning their three qualifying rounds and a playoff round in order to land one of four group slots available to qualifiers that are league winners outside Europe's top divisions.
Celtic finished third behind PSG and Bayern Munich in their group this season, pipping Belgium outfit Anderlecht to the Europa League last-32 spot.
They subsequently got eliminated at the hands of Russian giants Zenit Saint Petersburg, and manager Brendan Rodgers will attempt to go one better next season.
The furthest Celtic have gone in Europe of recent was reaching the final of the Europa League in 2003, known as the UEFA Cup back then, where they narrowly lost 3-2 to Porto.
They last reached the Champions League last-16 in 2013, and former goalkeeper Pat Bonner believes breaking the bank for two top signings by summer can see them go further.
“If Celtic get into the Champions League next year, and Rodgers brings in two quality players, they can do something in Europe," the legendary Irish goalkeeper told The Scottish Sun.
“Look at Marseille getting into the Europa League Final, Celtic could beat them.”
Marseille and Atletico Madrid will meet in the Europa League final after beating RB Salzburg and Arsenal to the final spots respectively.
The French team, currently fourth in Ligue 1, weren't particularly convincing in the campaign, losing two group games and three away knockout games en route the final.
Nevertheless, it's hard to see Celtic defeating them on a neutral ground or over two-legs, given the quality and depth of their squad.
The Scottish giants will have to invest heavily to challenge in Europe, and Rodgers will look to get more quality additions by summer for the challenge ahead.
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