Thursday notes: Nick Castellanos, Tucker Barnhart, Buster Posey

Nick Castellanos

Cincinnati Reds right fielder Nick Castellanos is now a free agent after exercising the opt-out clause of his contract on Thursday.

Castellanos, 30, batted .309/.362/.576 with a career-high 34 home runs, 38 doubles and 100 RBIs in 2021. He had two years and $34 million remaining on the four-year, $64 million contract he signed with Cincinnati before the 2020 season.

The contract had two opt-out clauses in it, but Castellanos decided to stay put after the 2020 season. This offseason, coming off his first All-Star appearance and perhaps the best year of his career, he's deciding to test the market.

Castellanos will be the best available right fielder in free agency this offseason. The White Sox, of course, have a well-documented hole at that position.

Will they bid? They should, but don't hold your breath. The Sox have yet to show a willingness to shop at the top of the market for anything other than relief pitching, so we'll see if they can do anything to quiet that criticism this winter.

Tigers acquire Barnhart

The Detroit Tigers on Wednesday acquired catcher Tucker Barnhart from the Reds in exchange for infield prospect Nick Quintana.

Barnhart, 30, appeared in 97 games for the Reds in 2021, batting .247/.317/.368 with seven home runs and 48 RBIs. However, the veteran catcher is being acquired for his defensive reputation -- Barnhart is a two-time Gold Glove winner (2017, 2020).

Detroit is building its team around a trio of promising young pitchers -- Casey Mize, Tarik Skubal and Matt Manning -- and there's really no question the Tigers needed an upgrade behind the plate. Barnhart's experience should help these pitchers in their development.

Are the Tigers, who finished 77-85 and 16 games behind the Sox in 2021, ready to take a step into contention in 2022? It depends on how active they are in free agency. I'm not prepared to call them a threat in the AL Central yet, but it's reasonable to assume they will improve.

Posey retires

Citing a desire to spend more time with family, San Francisco Giants catcher Buster Posey announced his retirement on Thursday.

The decision comes as a bit of a surprise, as the 34-year-old Posey was still playing good baseball, and the Giants were holding a $22 million contract option on him for 2022.

San Francisco won 107 games in 2021, and Posey was an important part of that success. He had his best offensive season in several years, batting .304/.390/.499 with 18 home runs and 56 RBIs in 113 games.

There's been some debate over whether Posey will eventually be elected into the National Baseball Hall of Fame. I would argue in favor of his induction. 

In 12 seasons, he made the All-Star team seven times and won three World Series with the Giants (2010, 2012, 2014). He was the 2010 NL Rookie of the Year and the 2012 NL MVP. He won a batting title, four Silver Slugger Awards and a Gold Glove award. I think that's enough to qualify him.