22-year-old Castaignos has 14 goals in 28 games for Eredivisie side FC Twente this season, and his form has led to interest from Premier League side Newcastle.
Prior to the January transfer window, it was reported by the Chronicle that the Magpies had been tracking the former Dutch Under-21 international ahead of a move for him, although nothing occurred during the winter.
That has not stopped the Toon from hunting a top striker to provide depth and competition, as well as a consistent goalscoring threat, and it now looks like Newcastle have the perfect opportunity to move for Castaignos - who has an impressive career tally of 58 goals in 157 games across Italy and the Netherlands.
According to a report in Dutch media outlet SoccerNews, Castaignos is said to be frustrated with his current career path at Twente, despite the personal success of his season. The article states that Castaignos ‘grumbled, was upset and quarrelled with fellow players' during Twente's most recent game, while he also 'barely hit a ball well'.
It is believed that the loss of form and desire to turn out for Twente occurred during the Eredivisie winter break, and, although there is no reference at a willingness to leave the club, his current frustration would appear to open the door to a summer exit.
If Newcastle still intend to sign Castaignos at the close of this season, they would be wise to move quickly for the forward, knowing that he could be on the lookout for a new club. The Magpies could potentially secure his signature for a cut-price fee - he has just one year left on his contract - and there is no doubt that the 22-year-old would be a welcome addition at a club that needs a top level striker if they intend to compete in the Premier League.