Black baseball legend Sammy Sosa has caused a social media meltdown after he was spotted with even lighter skin.

Photos of the former Chicago Cubs right fielder dabbing in London on Tuesday show how much he has transformed since retiring from the big leagues in 2007.

'Five days until Sammy Sosa's birthday...Here he is in London!' said a user posting a series of Tweets of Sosa and his wife in the city.

The 48-year-old Dominican-born athlete first appeared 'lighter' in 2009 and since then it seems the melanin in his skin has all but depleted.

Former Chicago Cubs player Sammy Sosa has sent Twitter into meltdown over his dramatic change in appearance

Sosa (pictured left in 1983 and right earlier this week in London) has been transforming his skin since retiring from the MLB in 2007

He showed off his dab to fans who spotted him on Regents Street in London

Former home run giant appeared to be in London celebrating his birthday with wife, Sonia Sosa

Fans took to Twitter to share their shock and dismay at Sosa's new look, but some also posted memes.

'Sammy Sosa looks like the grandpa from the munsters,' said user Jaron Montana.

Brandon Williams added: 'Idk what Sammy Sosa is going thru at this point in his life but this picture is terrifying.'

'Sammy Sosa looks like the grandpa from the munsters,' said user Jaron Montana

Brandon Williams added: 'Idk what Sammy Sosa is going thru at this point in his life but this picture is terrifying'

'My 1990 Fleer baseball card of Sammy Sosa... I just need to know does the value increase since he's white now. Lol,' said a different user

Another user compared the athlete to a different famous lightening case and said: 'It appears that Sammy Sosa has become the new Michael Jackson. Kind of creepy. #darktolight.'

'My 1990 Fleer baseball card of Sammy Sosa... I just need to know does the value increase since he's white now. Lol,' said a different user.

'Here is a picture of a white Sammy Sosa dabbing....2017 is weird,' added a user.

'Five days until Sammy Sosa's birthday...Here he is in London!' said a user posting a series of Tweets of Sosa and his wife, Sonia Sosa, in the city

Sosa was enjoying the sites in London as he and his wife, Sonia, wandered the streets

Sosa - who has six children - with daughters Keysha and Kenia in 2010 (right) at the beginnings of his skin transformation. The girls in 2011 pose for a photo without Sosa

Justin Sherman said: 'BRUH..... Sammy Sosa's transformation to Dominican Jay Leno is almost complete.'

'Sammy Sosa want good credit so bad..,' added a different user.

Lisa Andie said: 'I'm not completely sure but did Sammy Sosa morph into Shrek morphed into a man??'

'Here is a picture of a white Sammy Sosa dabbing....2017 is weird,' added a user

Justin Sherman said: 'BRUH..... Sammy Sosa's transformation to Dominican Jay Leno is almost complete'

'Sammy Sosa want good credit so bad..,' added a different user

Another user compared the athlete to a different famous lightening case and said: 'It appears that Sammy Sosa has become the new Michael Jackson. Kind of creepy. #darktolight'

'Sammy Sosa out here lookin’ like Andy Kaufman,' added a user.

Said a user: 'It makes me sad to see Sammy Sosa looking like the Ghost of Self-Hate Present.'

In 2009, when fans first noticed his appearance changed, he had to address some of the reports in the media.

Lisa Andie said: 'I'm not completely sure but did Sammy Sosa morph into Shrek morphed into a man??'

'Sammy Sosa out here lookin’ like Andy Kaufman,' added a user

Said a user: 'It makes me sad to see Sammy Sosa looking like the Ghost of Self-Hate Present'

An image of Sammy clipped from a TV interview in July with ESPNDeportes about the Home Run Derby made its rounds on Twitter as people compared him to the Pink Panther.

According to an interview with Univision’s Primer Impacto, Sosa did verify that he used a cream that softened and lightened his skin every night before bed.

'It's a bleaching cream that I apply before going to bed and whitens my skin some,' he said.

An image of Sammy clipped from a TV interview in July with ESPNDeportes about the Home Run Derby made its rounds on Twitter as people compared him to the Pink Panther

'It's a cream that I have, that I use to soften [my skin], but has bleached me some. I'm not a racist, I live my life happily.

'What happened was that I had been using the cream for a long time and that, combined with the bright TV lights, made my face look whiter than it really is. I don't think I look like Michael Jackson.'

The MLB superstar most notably played with the Chicago Cubs from 1992 to 2004.

In 2003, Sosa was among a group of 104 Major League Baseball players who tested positive for performance enhancing drugs.