The Northern Ireland international underwent an ankle operation earlier this summer, which ruled him out of contention for the Olympic games.
And Ferguson has now revealed that Evans is unlikely to be fit to start the season.
However, he is boosted by good progress being made by Smalling and Vidic.
Smalling is recovering from a ruptured groin, whilst Vidic is returning following cruciate knee surgery.
"Evans has had an operation, I'm not sure he'll start the season but he won't be far away," Ferguson told a press conference in South Africa, where United are undertaking a pre-season tour.
"Vidic will start the season. I am sure of that. He's still at that level of doing a good amount of training but not the competitive level that the other lads are at. He's better off staying at Carrington.
"Smalling has done a bit of training. He had a ruptured groin muscle which needed a lot of attention but he's made gradual progress and we expect him to start the season."
Chelsea won the Europa League on Wednesday. The Blues defeated Benfica 2-1 on injury time goal from Ivanovic.
Borussia Dortmund hears Wembley Calling and are headed to London for the Champions League final.
One of the top soccer cleats for control the Nike CTR360 will not let you down on the field in tight spaces.
The push for more color on their cleats, adidas has added the infrared colorway to the adiZero f50 Line.
The new PUMA evoSPEED 1.2 FG. A great new soccer cleat with classic look and first time for PUMA to be on the cleat.
The Juventus jersey for the 2013/14 was released earlier this week. Be the first to wear the colors of the Old Lady.
adidas has added some color to the Predator line with this new colorway. Released on May 17. Be the first to own a pair.
The Liverpool 2013/14 soccer jersey is available for pre-order. The Reds are eager to compete for silver next season.
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.
Ajax has released their away soccer jersey for the 2013/14 season. Get in the Gear.