"Andy's a dynamic small player who's very exciting to watch, and now he's getting a few things go his way," coach Randy Carlyle said. "He's getting an opportunity to play with Selanne, and those guys seem to have something going."
McDonald put Anaheim ahead 2-1 just 45 seconds before the second intermission, flipping a rebound over a sprawling David LeNeveu after Selanne worked the puck away from defenseman David Tanabe behind the net and was stopped at the edge of the crease.
"I think Andy has all the tools. He just needs the confidence to realize how good he is, because I don't think he knows yet how good he can be," Selanne said. "With his speed and talent, he's going to take advantage of these new rules."
Leclerc, who scored two goals against the Ducks in a 5-3 win on Oct. 23 at Anaheim, continued to make his former team regret trading him last August when he tied the score 42 seconds into the third period.
But the Ducks, who did not record a shot on net during their first two power plays, regained the lead for good the next time they had the man advantage. McDonald one-timed Selanne's pass from behind the net, beating LeNeveu to the glove side from close range at 3:01 of the period. It was McDonald's fifth goal this season, all in the last five games.
"I don't think I've been doing anything different," McDonald said. "I had some good chances earlier in the season and the puck just wasn't going in. Maybe that made me simplify the game a little bit, and I'm shooting a little bit more now than I was."
Selanne's high-sticking penalty gave Phoenix a power play with 2:18 remaining, but the Coyotes weren't able to get a shot on net -- not even after they pulled LeNeveu to get an extra attacker with a minute left on the penalty.
"It's disheartening," Phoenix coach and managing partner Wayne Gretzky said. "It's probably our fifth game with a one-goal differential where we got a power play in the last three minutes and didn't capitalize. I just think it's a combination of a lack of belief and a lack of effort.
"If the personnel who get the opportunity to have those chances to tie the game can't do it, then we'll get different personnel to play in those situations. We just can't continuously go with the same five or six forwards and not produce. So we'll address it and put different people in there."
The Ducks, who have surrendered at least one power-play goal in each of their first 12 games, were burned again at 8:58 of the first period when Sanderson opened the scoring with his third goal.
Selanne tied it at 4:54 of the second period with his ninth goal and seventh in seven games. His 461 career goals are the most by any player since the start of the 1992-93 season -- except for Jaromir Jagr, who has 489 during that period.
- Anaheim's home game Tuesday against the Nashville Predators has not sold out, which is good news for former Ducks captain Paul Kariya, who phoned the publicity office on Sunday to request 35 tickets for his homecoming.
- The Coyotes have scored at least once on the power play in five straight games, after going 0-for-8 on Oct. 20 at Vancouver.
- Phoenix C Petr Nedved's injured left elbow prevented him from playing in his 900th NHL game. He is expected to be out at least a week.