As reported by Colin Harvey of the Daily Star, Ausilio hints the versatile Colombian will likely find himself at the San Siro beyond January after weeks of speculation suggesting he would head to the Premier League club:
Guarin is an Inter player and we are happy to keep him. Denying the contacts with Chelsea would be denying the evidence.
It is a source of pride to talk with them about one of our players, but everything stopped there. We are happy Guarin could stay with us for a long time. We don't have the intention to sell him. He's an important player.
The 27-year-old midfielder—who has netted three times and provided four assists in 18 Serie A matches this campaign, per WhoScored.com—was expected to bolster Jose Mourinho's midfield options at this important time of the season.
Guarin is attack-minded but is also more than comfortable slotting into a defensively focused role if required, much like current Chelsea star Ramires.
With Frank Lampard heading toward the twilight of his career and Juan Mata fancied to leave Stamford Bridge, per John Cross of the Mirror, Guarin is a viable option for a squad that is bustling with talent.
As hinted by the Evening Standard's Joe Krishnan, Kevin De Bruyne's likely departure could also see Mourinho hunting midfield reinforcements across the current transfer window:
Chelsea are currently two points off Arsenal at the top of the Premier League. They remain in the FA Cup and Champions League, suggesting the entire squad will be needed if Mourinho's men are to continue competing across the board.
Inter's decision to distance themselves from selling Guarin is understandable at this stage of the campaign, especially considering their position. The Italian giants are currently sixth in Serie A and have enjoyed just one victory during their last six league games, per WhoScored.com.
It would be a gutsy move to rid Walter Mazzarri's squad of a key player at a time when the club continue to struggle. Chelsea have more than enough quality to maintain pace in the race for silverware, and right now, Mourinho should look to strengthen other areas of the squad.
Most noticeably, the Portuguese boss would do well to increase his striking options, as Fernando Torres, Samuel Eto'o and Demba Ba have only seven goals between them this Premier League campaign.
While Inter could initiate a change of heart if Chelsea stump up significant money for Guarin, Ausilio's comments suggest the former Porto player is destined to remain in Milan for the near future.