The ever-reliable DPMM duo struck in the second-half to hand the Brunei side another win to preserve their perfect start and send them to the top of the table
There were few opportunities for new import Roy O’ Donovan with DPMM’s in-form technician Azwan Ali Rahman serving as the attacking outlet with his ability to neatly find space and cover the ground before finding his target.
In the couple of occasions when O'Donovan managed to see seconds of the ball with the crowd spurring him on, the whole team appeared re-energised, buzzing with anticipation.
The former Cork City player did not quite enjoy the same welcoming on his first home start of the season from the referee. His goal was ruled out in suspicion of offside and then calls for a penalty waved off, with the Irish forward seemingly tripped in the penalty box.
The opening exchanges saw Warriors failing to capitalise on the home team’s tendency of losing possession and missing clearances, which DPMM incidentally dealt with easily.
After the visitors failed to deal with a loose ball, Tosi, who under immense pressure had to strike his shot early, received a wicked deflection off the defender and in the process completely deceived a stranded Hassan Sunny in goal.
After digging well to earn a creditable 1-0 win against Albirex Niigata in the first game, the import players were keen to make an impression on the raucous home crowd at the Hassanal Bolkiah.
If there were signs of nerves at the back for DPMM, Croatian rock Boris Raspudic marshalled the defence stoicall and contributed to restoring control of the situation, in the process reminding all present who the home team were by dominating possession.
It was perhaps no surprise that the danger came from Warriors' own pair of foreign signings, Miroslav Pejic and Nicolas Velez.
Pejic, arguably Warriors' most dangerous player of the night, laid off a clever pass to his strike partner Velez, whose sweeping cross needed only a touch. Had it found a team-mate, it may have spelt great concerns for Wardun Yussof in goal.
Despite Pejic's best efforts to revitalise his team with a leveller, earning the plaudits of DPMM coach Steve Kean after the game as "a very good player", the home side never looked like falling apart, let alone showing vulnerability in protecting a slim lead.
Rosmin, who put in another perfect performance, hammered the final nail in the coffin when he reacted the quickest to pounce on the rebound from his initial close range effort.
The win leaves DPMM top of the table after two rounds of matches played, with a perfect start under their belt.