The Baggies are keen to add a winger this summer, and The Sun believe that QPR's Matt Phillips is on his way to The Hawthorns in a £7m deal - but only because manager Tony Pulis couldn't land Antonio.
Antonio, 25, joined Forest from Sheffield Wednesday last summer, and became an instant hero among the City Ground faithful, hitting 15 goals in all competitions in his debut season with the club.
With a devastating combination of pace and power, Antonio is always a threat, and terrorised Championship defences through the past campaign - so it's no surprise that Premier League teams would be interested in signing him.
However, with new manager Dougie Freedman hoping to build a squad that can compete for promotion, Forest are keen to keep their stay players intact - and that includes Antonio.
The report from The Sun states that West Brom had tried to sign Antonio, only be told by Forest that he wasn't for sale at any price, which prompted Pulis to switch his target and turn to Phillips instead.
It's a real signal of intent from Forest, who could have made a hefty profit on Antonio just 12 months after signing him, but instead they appear to be building a strong side under Freedman - and whilst Antonio's time in the Premier League surely isn't too far away, he will have to wait a little longer.