SANTA CLARA, Calif. -- Sam Cronin scored in the first minute of second-half injury time to give the San Jose Earthquakes a 2-2 tie against the Montreal Impact on Saturday.
Cronin took one touch off a knockdown header from Chris Wondolowski and lashed a shot home from 20 yards for his first goal of the season.
Montreal (5-1-2) extended its unbeaten streak to three matches.
San Jose (2-3-5) has tied four of the past five matches and is winless in six straight games.
Mapp opened the scoring with a 30-yard shot that pinged in off the near post, then made it 2-0 with an open tap-in at the far post, set up by Andrew Wenger's short pass across the face of goal.
The performance capped a stellar week for Mapp, who also had a goal and an assist Wednesday in the Impact's 6-0 romp against Toronto FC during a Canadian Championship semifinal tie.
San Jose dominated play early only to be kept off the scoreboard by some stellar work from Montreal goalkeeper Troy Perkins.
The Earthquakes opened the scoring when Jahn placed a left-footed shot from 10 yards to the far post, finishing off a sequence that began with passes from Marvin Chavez, Wondolowski and Cronin.
Midfielder Walter Martinez and forward Marcus Tracy made their MLS debuts for San Jose in the final half-hour, and it made a difference. Justin Morrow fed a ball back to Martinez in the 91st minute, and it was Martinez's long ball that Wondolowski knocked down into Cronin's lap.