© 2012 MLB Advanced Media, L.P. All rights reserved.

02/25/12 6:02 PM EST

Full squad in action for first time

DUNEDIN, Fla. -- The Blue Jays went through their first official day of full-squad workouts on Saturday morning at the Bobby Mattick Training Center.

All 65 players in camp were on the field as the Toronto coaching staff put the club through a series of drills. Pitchers once again went through bullpen sessions, while the position players took fielding and batting practice.

"I think it was a chance for not only the position players to join the pitchers that have been here for a little while, but to feel the overall energy and the optimism among the group," Blue Jays manager John Farrell said.

"I know that can be said across baseball for the first day, but there is some genuine belief and confidence among the group that is here. So it was a good first day."

Toronto hitters will step into the batter's box against their counterparts on the mound for the first time on Sunday, as the group looks to gradually increase the level of intensity in camp each day.

The Blue Jays will continue their daily work at the Bobby Mattick Training Center right up until March 3 when they play host to the Pirates in the first game of the Grapefruit League season.

Villanueva out until hand mystery resolved

DUNEDIN, Fla. -- Right-hander Carlos Villanueva is experiencing a mysterious hand injury and will need to be examined by the Blue Jays' medical staff before a timetable for his return can be established.

Villanueva went through on-field drills on Saturday morning at the Bobby Mattick Training Center but as the day neared its conclusion, his right hand went cold.

Toronto believes the issue could be related to a circulation problem but won't know more until Villanueva undergoes a full examination.

"It usually indicates some circulation issues, so before commenting any further on it, we have to get a full workup for him," Blue Jays manager John Farrell said.

"He went through the drills but at the end of the day is when he felt a lack of circulation, almost a real cold temperature in his right hand. Again, I don't have enough at this point to determine what's going on there. He's going to get checked out completely by local medical staff here."

Villanueva began last season as Toronto's long reliever but eventually made his way into the starting rotation. The 28-year-old went 6-4 with a 4.04 ERA in 107 innings during his first season in Toronto.

The Dominican native is slotted to once again become a multi-inning reliever out of the bullpen. He is receiving competition for the spot from right-handers Jesse Litsch and Rick VandenHurk.

Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.