Agent John Boggs of Boston Red Sox first baseman Adrian Gonzalez said he is confident that his client will have a contract extension in place by the beginning of the regular season, Ian Browne of MLB.com reports.

“As expected, it was a very positive meeting with Theo,” said Boggs. “At the end of the day, everything has been as expected. We sat down and discussed where Adrian is at [physically]. I just think it’s going to move very positively in the direction of probably trying to get something done sometime in April.”

Boggs and GM Theo Epstein had a face-to-face meeting on Tuesday.

“It’s really just been catching up on things. The irony is, I haven’t talked to Theo since we left Boston [in December],” Boggs said. “A lot of people go, ‘Wow,’ but there really wasn’t anything other than, ‘Hey, get ready Adrian, get through Spring Training and let’s see how that goes. Let’s see how the progressive march towards the season goes.’ Then we’ll probably get locked in and drive this thing home if it’s meant to be.”

Gonzalez is signed through 2011 on a very affordable $5.5 million contract.  It was reported in mid-February by Ken Rosenthal of FOXSports that Gonzalez and the Sox had already agreed to a seven-year, $154 million extension (average annual value of $22 million).  Many believed it was a gentleman’s agreement that was required in order for the trade to take place in December. At the time, the sides were believed to have the deal in place, but will make it official once the season starts in order to prevent luxury tax penalties for the Red Sox.

Boggs is confident that both sides will come to a happy resolution.

“I would be very surprised,” Boggs said. “There were very positive feelings on both sides. There’s a lot of relationships in the past. I’ve dealt with Theo a lot, I’ve dealt with [Red Sox president/CEO Larry [Lucchino] a lot. John Henry was the first owner Adrian played for. There’s so many relationships involved here that if you can’t have an understanding or agreement, I probably can’t have one with anyone.”