Who is Melbourne City's new marquee man, Nicolas Colazo?

For the overwhelming majority of Australian soccer fans, Nicolas Colazo will be entirely unknown.

So what do A-League fans, and especially supporters of Melbourne City, need to know about the new arrival from Boca Juniors?

Here's five things to look out for in Melbourne's new marquee man:

1. He works best as an attacker, but not as a No. 9

Melbourne have given Colazo the No. 9 shirt, which has raised a fair few eyebrows back here in his homeland, because he's anything but a typical centre-forward.

When Colazo first broke into Boca Juniors' first team in 2009, he was played as a winger, and early on he was a big hit there. On his debut, he had a part in all three goals in a win over Colon de Santa Fe, and he went on to impress with his pace, direct running and his ability to put in a good cross or to cut inside for shots around the edge of the box.

Although his scoring record has never been astonishing (aside from a brief purple patch of three goals in as many games in 2011), he was an important part of the team which won the 2011 Apertura league championship -- although the championship before that one, the 2011 Clausura, was when he'd played arguably his best football.

2. But he might have played for Argentina at left-back

In spite of that strength going forward, though, Colazo's best shot at a big career move -- and, perhaps, at a national team call-up -- was in defence. When he broke through for Boca, Marcos Rojo (who at the time was playing for Spartak Moscow) still hadn't made the seleccion's left-back position his own, and if there was a role that was up for grabs for Argentina, it was that one -- rather than Colazo's favoured left wing or wide midfield role, where he'd have had to get past Angel Di Maria if he wanted to play.

That meant he would have arguably stood a better chance of a call-up playing in his second best position, but after seemingly being a victim of his versatility at times under former Boca coach Julio Cesar Falcioni, and then being frequently overlooked by Carlos Bianchi, he was eventually moved to left-back on a more permanent basis by Rodolfo Arruabarrena.

The Argentina call-up never happened, of course (although he did play as a winger for Argentina's under-15s, back in 2005), but for a while he looked like he might be one of the Albiceleste's best hopes for the future in that position.

3. His serious injury back in 2012

Colazo has never quite been the same player since a horrible injury in 2012, when Union de Santa Fe defender Rodrigo Erramuspe mistimed a tackle.

The leg break Colazo suffered as a result kept him out for half a year, and when he did return he could never recover the consistency he'd shown before the injury. Although he did return to the Boca Juniors line-up, he struggled to hold down a regular starting place during the 2012-13 season and hasn't hit the same heights since.

Bianchi didn't see Colazo as a first team regular when he came in as boss, and the 26-year-old never managed to win him round.

In mid-2013, he was loaned to fellow Buenos Aires club All Boys, where he was a regular during the 2013 Torneo Inicial for the club, who were by then managed by Colazo's former boss at Boca Juniors, Falcioni.

4. His best football was played under Falcioni

He's played probably his best football -- as an attacking player at least -- under Falcioni, both for Boca and All Boys.

During his spell at the latter club, he wasn't a young squad player looking to make a mark, but as a loan arrival from one of the true giants of Argentine football and was something of a star turn for the side, whose compact stadium in a residential area of Buenos Aires proved a receptive stage.

He starred in his 17 appearances in the 19-game Torneo Inicial in 2013, although he didn't manage any league goals or assists in a struggling team (he did score a goal in one of his two Copa Argentina appearances for the club).

The move gave him some much needed game time which was followed by a return to Boca, where Arruabarrena -- as mentioned above -- converted him to a left-back.

Falcioni's sides tend to build from the back and play on the counter-attack down the flanks so, should Melbourne decide to play that way, Colazo should certainly prove effective as a winger, while his versatility and ability to fill in at left-back since being brought under Arruabarrena's wing could also come in handy.

5. At 26, the time to move is now

Things could have gone so differently for Colazo; but for that injury at the feet of Erramuspe in early 2012, it would have been no surprise to see him playing in Europe, perhaps for a mid-table club in Serie A or La Liga.

With a little more luck, perhaps he'd even be pushing for an Argentina spot.

But at 26 he's not yet by any means finished, and with current Boca manager Guillermo Barros Schelotto making it clear Colazo isn't in his plans, a move away from the club is clearly necessary.

Certainly, he's got the talent to be a big hit in Australia.