The Reds have been waiting for the Clarets to bolster their own goalkeeping ranks and now it seems they’re pretty close.
Hennessey will leave Turf Moor after two seasons at the club, where he has played second fiddle to Nick Pope more often than not.
The Wales international will provide competition for Dean Henderson, with Ethan Horvath and Brice Samba both leaving the City Ground.
At 35-years-old, Hennessey is a vastly experienced stopper and before moving to Burnley he played for Wolves and Crystal Palace.
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Forest have moved quickly to add to their goalkeeping department. The Reds will want to ensure they are well-stocked ahead of their forway into the Premier League.
Hennessey hasn’t played much at Burnley. During his two seasons in Lancashire, he’s made just three appearances.
The 103-cap Wales performer will be keen to keep his eye in by training with a top-flight club.
He will keep goal for his country at the World Cup in November and he will fancy being sharp.
Hennessey is unlikely to play much. Henderson will be the number one custodian but Hennessey has the quality to keep him on his toes.
Forest close to signing Hennessey
This looks like a really good piece of business by Forest. Hennessey will become signing number seven and the Reds are nowhere near finished yet.
The veteran stopper comes in as a certain backup. Pushing Henderson will be important though and if anything does happen to him, Hennessey will be ready.
Forest will sign more glamourous players than the £21,000-a-week second-choice goalkeeper but that doesn’t mean this business is any less important.
Next up for the Reds, expect some midfielders to be signed.