The Paraguayan has found his form in his homeland.
Most Leeds United fans would probably now agree that the club were too swift in getting rid of Nicky Ajose.
The striker was discarded after barely getting a chance at Elland Road. He went on to score 25 goals in 40 appearances for Swindon Town in League One last season.
But another young forward who never really got a chance at Leeds in 2014-15 was Paraguayan Brian Montenegro. Signed on loan from Nacional Asuncion he featured just five times for Leeds and the Yorkshire club did not take up the option to buy the player, despite then head coach Neil Redfearn saying this in April 2015 to LUTV, as reported by Inside Futbol, after Montenegro had scored a hat-trick against Huddersfield under-21s:
“Brian with his hat-trick took his goals well and looked bright in and around the box.
"His finishing was excellent. He's alive and alert in the box and he's scored a lot of goals this season for the 21s.
"He's been patient for his time. He came on for the first team at Charlton and showed some nice, neat touches", the head coach continued.
"So he's one that's got a really bright future if we can keep hold of him."
Now it seems Redfearn was right.
Montenegro has been in fantastic form in 2016. He has scored 18 goals, including two hat-tricks, in 22 appearances in 2016.
This form is even more impressive when you consider he is the top scorer in Paraguay’s Apertura, five clear of his nearest rival, for a team that are currently second from bottom.
Redfearn has an eye for young players and in this case once again it seems he was on to a winner.
Montenegro’s next move looks likely to be to one of the bigger clubs in his home nation before perhaps heading to Europe again, where he has also played for West Ham.
Until then Leeds will just have to keep tabs on the player to see what might have been.