Arsene Wenger believes Chelsea's interest in Manchester United striker Wayne Rooney represents a serious danger for Arsenal, regardless of the outcome of the protracted transfer.
Rooney has been the subject of two failed bids from Chelsea and reports claim the England striker is considering submitting a formal transfer request to force through a move to Stamford Bridge.
Chelsea's first formal approach for Rooney came last month before the Blues returned with an improved offer of £25 million for the 27-year-old earlier this week - both of which were dismissed by the Premier League champions.
Manchester United, though, maintain that Rooney is not for sale and appear prepared to resist any further bids from Chelsea in order to keep the player at Old Trafford beyond next month's transfer deadline.
Wenger, meanwhile, has been following the developing story with great interest with the Arsenal boss aware that Rooney joining Chelsea could cause repercussions for the Gunners when the new seasons begins.
"With Rooney, [Chelsea] will be even more dangerous for sure," he told Al Jazeera Sport.
"I rate Rooney highly and unfortunately we fight with Manchester United and Chelsea.
"So, on one front, if he goes then Manchester United will be weaker, that's quite good for us. But if he changes to Chelsea then they will be stronger - which is not good for us."