Santiago Casilla (knee) will be activated from the disabled list on Friday or Saturday.

Casilla threw a bullpen session with the Giants on Thursday and seems done with his rehab assignment. It would be a surprise if he's not activated prior to Friday's game.

Santiago Casilla (knee) could be activated from the disabled list Thursday.

Casilla has a 5.40 ERA and 2/5 K/BB ratio over five rehab innings in Triple-A, but the important thing is that he hasn't had any setbacks with his knee. The veteran reliever will travel with the team to San Diego and should be available for their four-game series against the Padres.

Santiago Casilla (knee) expects to return to the Giants bullpen at some point next week.

The team wants to see him pitch in back-to-back rehab games before he's activated, which could happen on Sunday and Monday. He's been sidelined since the middle of May after undergoing surgery to remove a cyst from his knee.

Santiago Casilla (knee) threw two scoreless innings Tuesday in his second rehab appearance with High-A San Jose.

Casilla threw a total of 25 pitches while allowing one hit and no walks. He's currently on track to rejoin the Giants' bullpen later this week. The veteran right-hander has been sidelined for over a month after having surgery to remove a cyst from his knee.

Santiago Casilla (knee) made his first rehab appearance Sunday with High-A San Jose.

He allowed one run on two hits over one inning, throwing 12 of his 15 pitches for strikes. Casilla didn't report any setbacks and remains on track to be activated from the disabled list later this week.

Santiago Casilla (knee) will begin a rehab assignment Sunday with High-A San Jose.

Santiago Casilla (knee) reportedly looked good during a two-inning simulated game on Friday.

He'll soon begin a minor league rehab assignment and could be looking at a return to the Giants' bullpen by the end of next week. He'll return to his regular role as the primary setup man in front of closer Sergio Romo.

Santiago Casilla (knee) will face hitters on Friday.

It will be the first time he's done so since he had a cyst removed from his right knee last month. The Giants are hoping Casilla will be ready for activated early next month.

Santiago Casilla (knee) threw a 20-pitch bullpen session Thursday.

Casilla reportedly ran at 50 percent on Friday and could be cleared to face live hitting next week in Los Angeles. If he can avoid setbacks, he'll likely appear in 2-3 rehab games before rejoining the Giants on July 4.

Santiago Casilla (knee) will throw a bullpen session Thursday.

It will be his first since he had a cyst removed from his right knee last month. While Casilla was originally expected to be out until the second half of the season, it appears he could rejoin the Giants' bullpen prior to the All-Star break.

Santiago Casilla (knee) is expected to throw off a mound within the next week.

Casilla had a cyst removed from his right knee late last month but has recovered quicker than expected. It appears that he'll rejoin the Giants' bullpen prior to the All-Star break.

Giants manager Bruce Bochy said Friday that Santiago Casilla (knee) could be activated from the disabled list in 2-3 weeks.

Good news, as Casilla was originally expected to be out until a little past the All-Star break. The veteran reliever threw off flat ground Friday for the first time since surgery and will continue to build his workload for now.

Santiago Casilla threw off flat ground Friday for the first time since having a cyst removed from his right knee late last month.

Casilla also no longer requires the use of crutches. He's hoping to rejoin the Giants' bullpen soon after the All-Star break.

Santiago Casilla will undergo surgery this week to have a cyst removed from his right knee.

It's not clear at this point how long the operation will sideline him. Casilla has been battling the ailment since last season and the pain finally became too much to deal with. It's a blow to the Giants' bullpen depth, but they should be OK.

Giants manager Bruce Bochy indicated Friday that knee surgery is a "strong possibility" for Santiago Casilla.

They'll announce their decision later Friday evening. Casilla has been dealing with a cyst in his right knee since last season, and became enough of an issue recently that he had to be placed on the DL. If he undergoes the surgery, which appears likely at this point, the timetable for his recovery would be four weeks.

Giants general manager Brian Sabean said during a radio interview Thursday that he anticipates "there's some form of surgery coming" for Santiago Casilla (knee).

Casilla has dealt with a cyst on his right knee since last season and it recently became enough of an issue that he was placed on the DL. He shouldn't need a major operation, but it's not clear how long he would be sidelined.

Santiago Casilla will have the cyst on his right knee examined by a specialist on Wednesday.

Casilla has dealt with the cyst since last season, and a brace that he had been wearing wasn't working. He'll receive another opinion on Wednesday to see if there's another way to combat the issue.

Giants placed RHP Santiago Casilla on the 15-day disabled list with a cyst on his right knee.

Casilla has been dealing with a cyst on his right knee and recently started wearing a brace, but he is apparently still dealing with discomfort. The Giants are clearing hoping that a couple of weeks of rest will do the trick. Sandy Rosario will replace him in the bullpen.

Santiago Casilla (knee) threw off a mound Tuesday and is expected to be available Wednesday night.

Casilla hasn't made a relief appearance since last Wednesday because of a cyst on his right knee, but all is well now. The right-hander has a 2.12 ERA in 17 innings.

Santiago Casilla (knee) is not expected to be available until Tuesday.

The Giants will play the rest of the weekend with a short bullpen, but Casilla will avoid the disabled list. The 32-year-old has been highly effective over his first 19 appearances, compiling a 2.12 ERA, 1.12 WHIP and 14/10 K/BB ratio through 17 innings of work.