ZURICH — Celtic, Legia Warsaw and Salzburg enjoyed comfortable home wins as they eased into the Champions League third qualifying round without conceding a goal between them Wednesday.

Scott Sinclair scored twice to help Celtic, the only former European champions among the 34 teams in the second qualifying round, to a 4-0 win over Northern Irish champions Linfield as they completed a 6-0 aggregate win.

Tom Rogic, with a superb long-range effort, and substitute Stuart Armstrong completed the scoring for Celtic, which has won the Scottish title for the last six seasons.

There was a heavy police presence at Celtic Park after both teams were charged by UEFA after violent scenes in the first leg in Belfast.

The fixture was politically charged with Celtic being a predominantly Catholic side and Linfield a Protestant club with close ties to Celtic’s Glasgow rivals Rangers.

Michal Kucharczyk scored twice to help Polish champions Legia Warsaw, aiming to reach the group stage for the second season in a row, to a 6-0 win over Finland’s IFK Mariehamn as it completed a 9-0 aggregate win.

Austrian champion Salzburg, which has failed in its last nine attempts to get through the qualifiers despite sponsorship from energy drinks giant Red Bull, beat Malta’s Hibernians 3-0, having won the first leg by the same score.

Dundalk’s attempt to become the first Irish side to reach the group stage ended when they were beaten 2-1 by Rosenborg after extra-time and lost 3-2 on aggregate.

Brian Gartland headed Dundalk ahead after 12 minutes but Yann-Erik de Lanlay leveled five minutes before the break and Matthias Vilhjalmsson headed the decisive goal for Rosenborg eight minutes into extra-time.

The Norwegian champions will face Celtic in the next round.

FC Copenhagen progressed despite losing 2-1 at home to Slovakian champions Zilina, hanging on thanks to their 3-1 win last week, while Maribor’s 1-1 draw at home to Zrinjski Mostar was enough to take the Slovenians through 3-2 on aggregate.

Ludogorets Razgrad, which has reached the group stage twice in the last three seasons, survived an early scare against Zalgiris before going through with a 4-1 win.

The Lithuanians, 2-1 ahead from the first leg, took a shock lead through Serge Nyuiadzi but the Bulgarian champions hit back through Brazilian pair Natanael and Wanderson and two goals from Romanian Claudiu Keseru. — Reuters