The article is old enough (2015) that, as noted in the story, St Louis, with their latest loss of an NFL team, is now tied with New York City.
And when the Warriors move to their new stadium in San Francisco, that will be three teams that have left Oakland, including the NHL California Golden Seals (although they were known as the Oakland Seals at one point), which moved to Cleveland before merging with Minnesota (now Dallas).
Tell me about it. As a youth, I was heartbroken… twice.
But we did get the Redskins and Bullets… oops… I mean “wizards…” from other burgs.
er nevermind, I can’t count. 
This is about sports teams moving away from cities, not Australian boundary changes based on wagers or economic immigration incentives.
San Diego has lost:
The Chargers to LA (NFL)
The Rockets to Houston
The Clippers to LA (both NBA)
they’ve had 7 pro and semi-pro soccer teams (3 named The Sockers - how original)
And they’ve had a long hard relationship with ice hockey (like ATL, not alot of ice):
This reminds me: Los Angeles has lost four pro football teams:
- Dons (AAFC; when the AAFC and NFL merged in 1950, the Dons were merged with the NFL’s Rams)
- Chargers (moved to San Diego in 1961)
- Rams (moved to St. Louis in 1995)
- Raiders (moved back to Oakland in 1995)
The irony, of course, is that two of the three teams that moved away have since moved back.
I gather the loss of the SuperSonics was almost as bitter.
There were also the Seattle Metropolitans, who played in the Pacific Coast Hockey Association and folded with that league in 1924. But if you ever want a good trivia question, they were the first American team to win the Stanley Cup.
I’ll play the Devil’s Advocate for St. Louis:
A crap football team that hadn’t won an NFL championship since 1947, while it played in Chicago, and never won a playoff game while a St. Louis franchise. The incompetence continues, with one lone Super Bowl appearance since then. How do you ask St. Louis sports fans to support such incompetence?
The NFL has had a hard on for a NFL franchise in LA for 20 years. Moving the Rams back to LA with an owner with countless billions in his pocket was too much to resist.
The Cardinals have won 5 World Series, the Orioles 3 since then, so who care?
Another teams that has wasted everyone’s time
This was THIS close to being an NBA franchise—if you look up the story of the owners, they made a LOT of money off the NBA!
Milwaukee lost the NBA’s Hawks to St. Louis and the Braves to Atlanta.
Chicago lost the NBA’s Zephyrs,who became the Baltimore Bullets. They also lost the NFL Cardinals to St. Louis.
The point is a whimsy ie that other countries of the world play professional sport. The locals commonly react with incredulity at the notion. it’s a task worthy of the SDMB motto.
FWLIW
South Melbourne Swans became the Sydney Swans
Fitzroy Lions became the Brisbane Lions
By any definition they are 2 professional sports teams, of the same sport, who have left the same city as per OP
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But that one season (well, most of it, anyway) was immortalized in Jim Bouton’s classic Ball Four.
That site is now a Lowes, a fact I only know because they kept a sign saying something like ‘Site of the Historic Sicks Stadium.’ I believe the Rainiers, now a AAA team in Tacoma, played there at one point as well.
And the beloved Seattle Thunderbirds, who now play down in Kent.
Boston lost the MLB Braves, the NFL Redskins, and the WHA, then NHL Whalers. If you’re counting upstart leagues that survived briefly after a team loss, then include the USFL Breakers.
I read Ball Four when I was in high school; I really ought to re-read it.
One enduring memory from it was Bouton relating that Pilots manager Joe Schultz’s two favorite terms were “shitfuck” and “fuckshit.”
Tacoma’s had a separate AAA team in the PCL since 1960 and has gone through a number of names before settling on the Rainiers when they began their affiliation with the Mariners. However, aside from the use of the same name, the Tacoma Rainiers have no connection with the old Seattle Rainiers and never played in Sicks Stadium since they have their own park, Cheney Stadium.
Looks like I made a poor assumption in there. It sounds like the Tacoma team associated with the Seattle Mariners only in 1995, and became the Rainiers the same year. As a total tangent, how does that work, exactly, given that the MLB team generally owns the players’ contracts? Did everyone (*) who played for the Calgary Cannons (the M’s prior AAA affiliate) the previous year just transfer and become Tacoma Rainiers?
(*) everyone, of course, excluding players who retired, were promoted, demoted, or traded.
It’s interesting how Baltimore’s teams, the Orioles, and the Ravens, were formerly known as the Browns, but in separate sports.
All that’s brown runs down to Baltimore.