Arsenal chairman Hill-Wood suffers heart attack
The 76-year-old was taken ill on Friday, according to the Arsenal website.
A statement read: "Everyone at Arsenal Football Club sends their support and best wishes to chairman Peter Hill-Wood. Peter is making a good recovery.
"The club wishes Peter a full and speedy return to health and our thoughts are with him and his family at this time."
Arsenal are 10th in the Premier League after a poor start to the season with manager Arsene Wenger under pressure like never before in his long reign.