The Brazilian helped the hosts come away with a share of the spoils after trailing at home to the A-League's reigning premiers
In a game that will be overshadowed by clashes between rival supporters earlier in the day, substitute Brendon Santalab appeared to have given the visitors all three points with a well-taken goal in the 71st minute before Gui Finkler struck a brilliant injury-time free kick to earn Melbourne Victory side a deserved point.
A tightly contested match begun brightly for the Victory with Connor Pain cutting in from the right and forcing Wanderers goalkeeper Ante Covic into his first save after just three minutes.
It was then the visitors turn to attack with Labinot Haliti scuffing a good chance before he saw a free header brilliantly saved by Coe that was created by a superb cross from Jerome Polenz.
Both teams appeared to be comfortable in possession in their respective final thirds with the Victory looking particularly dangerous through attacking duo Mitch Nichols and James Troisi.
However, it was fellow forwards Kostas Barbarouses and Pain that created the best chance of the first half on 19 minutes. The Kiwi was able to skip past several challenges on the left wing before whipping in a brilliant ball which was missed by Ante Covic only for Pain to fluff his shot on the stretch.
Roared on by a rowdy crowd of 22,133 the home side begun to turn the screws with Nichols heading a chance wide before Barbarouses missed another great opportunity from inside the area with Nichols again involved.
The Victory then endured a few nervy moments with the visitors having a penalty shout waved away after Haliti went down in the box on the half-hour mark before Tajh Minniecon curled an effort just wide minutes later.
Tony Popovic's side then wasted a golden opportunity of their own. Minniecon breezed past Geria in the box before his cross caused a mad scramble which ended in Haliti scooping a shot over the bar as the two sides went into the break deadlocked.
The Victory came roaring out of the blocks in the second half with some exciting attacking play and could consider themselves unlucky not be given a penalty after a Mark Milligan shot was blocked by Topor Stanley's outstretched arm.
As the half wore on the home side continued to waste good opportunities on the counter and they paid the ultimate price in the 71st minute. Finkler gave the ball away cheaply to Minniecon in the middle of the park before he slipped in Santalab who scored with his first touch, slotting the ball past Coe on his near post to send the away fans into a frenzy.
The Victory's frustrations only grew from there with several more chances going begging, the best of which was a deflected Nichols effort which looped agonisingly wide of Covic's far post.
With the Victory pressing for a winner they were left exposed on the counter and were lucky not to fall further behind with Yousef Hersi missing two good chances, including a one-on-one with Coe.
But the home side refused to give up however and after Finkler was brought down on the edge of the box the Brazilian stepped up to gift Victory a point.
Melbourne Victory 1 (Finkler 93)
Western Sydney Wanderers 1 (Santalab 75)
Crowd: 22,133 @ AAMI Park
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