Stefan Frei had six saves for his fifth shutout of the season, and the Seattle Sounders played to a scoreless draw with the Philadelphia Union on Saturday night.

Frei pushed Brenden Aaronson’s shot to safety in the 18th minute and corralled the rebound of a low knuckler in the 53rd for the Sounders (7-1-5).

Andre Blake needed one save to register his second clean sheet of the year for the Union (7-3-3).

Seattle Sounders' Nicolas Lodeiro, right, keeps the ball from Philadelphia Union's Sergio Santos during the first half of an MLS soccer match Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)
Seattle Sounders’ Nicolas Lodeiro, right, keeps the ball from Philadelphia Union’s Sergio Santos during the first half of an MLS soccer match Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)

Both teams had winning streaks snapped by the result. Philadelphia had won three straight and Seattle was winners of its last two.

Philadelphia Union coach Jim Curtin reacts during the first half of the team's MLS soccer match against the Seattle Sounders, Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)
Philadelphia Union coach Jim Curtin reacts during the first half of the team’s MLS soccer match against the Seattle Sounders, Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)
Seattle Sounders coach Brian Schmetzer waits for the team's MLS soccer match against the Philadelphia Union, Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)
Seattle Sounders coach Brian Schmetzer waits for the team’s MLS soccer match against the Philadelphia Union, Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)
Philadelphia Union's Auston Trusty, left, kicks the ball away from Seattle Sounders' Will Bruin during the first half of an MLS soccer match Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)
Philadelphia Union’s Auston Trusty, left, kicks the ball away from Seattle Sounders’ Will Bruin during the first half of an MLS soccer match Saturday, May 18, 2019, in Chester, Pa. (AP Photo/Chris Szagola)