We may never find out exactly how much Leeds Rhinos paid the Giants to secure the services of Brett Ferres.

But it’s safe to assume it was a tidy amount, running in to six figures.

It’s not unusual for rugby league transfer deals to be completed for an undisclosed fee – to the public at least.

Unlike football, the figure is kept very much under wraps. And, of course, the difference in the fees for the respective sports is somewhat different!

In rugby league terms, however, the Ferres deal would be a petty big one.

Even though Ferres was transfer-listed by the Giants for disciplinary reasons after allegedly sleeping with a teammate’s wife, the England back-row forward wasn’t short of potential new suitors.

As soon as news emerged that Ferres was likely to be kicked out of the Giants just days after starring for England in their Test series triumph over New Zealand, clubs on both sides of the world began queuing up to secure his services.

Read More: Huddersfield Giants suspended star Brett Ferres signs for Leeds Rhinos

The likes of Super League rivals Salford and Australian NRL club Sydney Roosters were immediately linked, while the names of Wigan and Hull FC in England and Newcastle Knights in Australia joined soon after.

Straight away, the Giants were in a strong bargaining position. Highest bidder wins?

So for Super League champions Leeds Rhinos to eventually win the race must have cost them one of the sport’s bigger amounts. It must have been good enough for the Giants, while it must also have been good enough for Ferres in regard to the personal terms offered.

Clearly, the sum involved would be nowhere near the world-record fee of £700,000 New Zealand Warriors paid for Wigan’s Sam Tomkins in 2013 or the £450,000 forked out by Wigan to acquire the services of former Giants prop Stuart Fielden from Bradford Bulls in 2006.

A history of Rugby League's big money buys

But could it come anywhere near the £250,000 Leeds handed Wigan to get hold of Ellery Hanley in 1991?

It’s possible.

And that’s certainly more than possible if the Rhinos paid out the rest of Ferres’s Huddersfield contract to their West Yorkshire neighbours to get his signature.

Ferres had four years remaining on his current contract at the John Smith’s Stadium, and with the 29-year-old now an established England international, a 2013 Super League Dream Team member and Giants vice-captain, he will have been one of the club’s biggest earners.

The average salary for a Super League player is believed to be just over £60,000 a season. Ferres must surely have been doing better than that.

We’ll probably never know for sure.

But what is for sure is that the Giants now have a sizeable amount of spare cash available on their salary cap.

At this stage of the year – with the start of the season a month away – there’s very little quality out there. There’s no point spending this extra money for the sake of it.

It is good to know, however, that if a top-class player does become available at some stage this year and they could add genuine strength to the squad, the Giants are in a position to make a move.