Edinson Cavani PSG
PSG striker Edinson Cavani is ecstatic after scoring against Ajax in the Champions LeagueReuters

Radamel Falcao has not quite made the impact expected since signing on a season-long loan from Monaco, and Manchester United  are ready to forego the opportunity to sign the striker on a permanent transfer in the summer and turn their attentions towards the other South American forward with similar qualities – Edinson Cavani.

After completing the loan move to Manchester United on transfer deadline day in the summer, Falcao was eventually expected to agree on a permanent transfer.

However, things haven't gone too swimmingly for Falcao since that move to Old Trafford, with injuries keeping game time to a minimum and goals to just one.

Worries have crept up considerably over Falcao's knee not quite being at 100 percent as well, despite the striker insisting he has completely recovered from the serious injury which ended his second half of last season at Monaco and his World Cup chances.

A cal injury, picked up in training, has kept Falcao sidelined for the last few weeks, leaving those knee doubts to creep up and up.

Falcao returned to training earlier this week and is expected to be available for Manchester United's English Premier League match against Hull City on Saturday.

However, after the lukewarm start made by Falcao, Manchester United are ready to let the striker move back to Monaco come the end of the season. Instead, Louis Van Gaal is targeting PSG striker Cavani.

The fact that Cavani has not had the best of times since making a big-money move from Napoli to the French capital is a known fact, with Zlatan Ibrahimovic the undisputed main man at the club.

Cavani has been linked with a move to the Premier League multiple times, with the likes of Chelsea, Arsenal  and Liverpool, apart from Manchester United, all showing an interest.

However, Cavani has, so far, stuck with PSG, but that could all change with Manchester United considering a £50 million bid for the Uruguay international.

PSG have refused to sell Cavani over the last few transfer windows, and with Ibrahimovic not getting any younger -- even if he continues to show his powers are far from waning – the Ligue 1 title holders might not be too keen on letting go of their goalscoring asset.

But a £50 million offer might tempt them to rethink, with Manchester United, no doubt, having no problems in matching the player's wages, or even bettering it, either.

All of this will remain conjecture, though, if Falcao finally finds his goalscoring rhythm and puts those knee injury worries behind him. A goal or two against Hull City, if given an opportunity by Van Gaal, will certainly be a good start.