The Argentine labelled Al Ahli's tactics as 'ugly' and 'unfortunate' but their ex-Atletico Madrid boss was bemused by the allegations as they cruised into the Emirates Cup final
Quique Sanchez's side won the match 1-0 thanks to substitute Faisal Khalil's second-half goal which earned them a place in the final.
However the game was marred by various incidents, with Al Wasl angry at alleged Al Ahli play-acting. The tension led to a post-game incident where Al Wasl keeper Majed Naser slapped former Atletico Madrid boss Quique Sanchez on the back of his head.
Naser was later suspended indefinitely by Al Wasl, who apologised via Twitter, however coach Maradona was still forthright in his opinion on Al Ahli and Quique Sanchez' tactics.
"This is not the way football should be played. This was quite ugly," Maradona told reporters at the post-game press conference.
"This type of play is unfortunate. He knows the type of beautiful football that can be played when he used to coach Atletico Madrid and Valencia.
"The only thing he has taught his team is how to fall on the ground."
Quique Sanchez was bemused by Maradona's allegations despite the fact four of his players went down in the second-half, which led to six minutes of injury-time.
"If Maradona thinks the players fell to the grass, that is his problem not mine," the Spaniard said.
"Things have changed a lot in the last three months. Al Wasl beat us 4-0 (in the President's Cup) then and now we are in the final."
Al Ahli face Al Shabab, who defeated Pro-League champions Al Jazira 4-0 in the other semi-final, in the decider on May 26.
Meanwhile, Maradona's Al Wasl are out of all cup competitions this season, while they are well off the pace in the Pro-League in fifth spot.