Morwell City: Insipid as ever.

Former Melbourne Heart boss John Aloisi has bought into the controversy surrounding David Villa, suggesting the Spanish striker may not be happy in the A-League.

Villa leaves Australia after Friday night’s match for Melbourne City against Adelaide United – just four matches into an expected 10-game stint – and City bosses are yet to negotiate his return.

A combination of football, family and marketing reasons are thought to be behind his departure.

Villa’s family has been settling in New York while he plays in Melbourne, with his next club – New York City FC – expecting him to fulfil football and promotional obligations ahead of the US Major League Soccer (MLS) season starting in March.

But no one understands why Villa or Melbourne City have not guaranteed his return.

It’s a delicate situation for the club, not helped by their winless start to the league season.

Aloisi, the man who preceded John van `t Schip as coach of the since-rebadged club, believes something is not quite right.

“If he’s missing his family you would think that they would just fly the family out,” Aloisi told Fox Sports.

“If they’re saying he needs to promote New York City (FC) over there, you would have thought they would have announced that beforehand.

“Reading in between the lines, I think there’s something else.

“I don’t know if he’s totally happy or if they’ve already planned he was only going to be here for four games.”

Aloisi was relieved of his duties as coach of the then Melbourne Heart less than a month before the announcement of the club’s takeover.

The oil-rich Abu Dhabi owners set in train an off-season transformation of the club.

The biggest on-field statement was the arrival of Villa, who as a guest player can play for up to 10 games.

The official announcement of Villa’s arrival from June this year said Villa would play for “a period” of the season.

“Villa … will play, train and contribute to Melbourne City FC’s Hyundai A-League campaign between October and December 2014 prior to the commencement of the MLS season in the United States,” Melbourne City’s statement reads.

With nowhere else to play competitive football between now and the MLS season in March, Villa’s one-way ticket out of Australia is a mystery yet to be solved.