The long-serving Manchester United full-back signed a new contract on Friday after proving he still has plenty to offer at Old Trafford after coming back from a long-term injury.
Although a virus will prohibit his involvement against Blackburn at the weekend and a UEFA Champions Leagues clash with Inter Milan in midweek, Ferguson expects to be able to call on the experienced campaigner at Wembley.
"Gary is back training now," Ferguson told MUTV.
"He is doing all the physical work now and will be into football training on Monday so he will be available for the Carling Cup final."
Welbeck optionMeanwhile, Ferguson refuted suggestions Danny Welbeck had been dumped into the reserves on Wednesday night as punishment for his elaborate goal celebration at Derby last weekend.
Instead, it transpired the England U21 star played against Wigan's second string purely to keep his fitness up before he also joins the United squad for what will be his first appearance in a major final.
"Danny Welbeck had to play with the reserves because I had Wayne Rooney back and the boy was needing football," said the United boss.
"He did very well against Derby and then played the full game against Wigan reserves and scored two goals.
"He will also be available for the Carling Cup final."
The situation with Anderson is not quite so clear cut.
Earlier this week Ferguson stated it would be 'weeks' before the Brazilian returned to duty after suffering an ankle injury against Derby last month.
The prognosis is not so bad now, although it will still be touch and go whether Anderson is fit to face Spurs: "He could be a substitute," added Ferguson.
"He is just doing light stuff with the first team. He is doing more physical work and combining that with a bit of football.
"One more week and he will be back with us properly."