[Python] Pandas Group by without performing aggregation

I have a pandas dataframe as follows:

Athlete ID City No. of Sport Fields
1231 LA 81
4231 NYC 80
2234 NJ 64
1223 SF 75
4531 LA 81
2345 NYC. 80
...

I want to print the City and No. of Sport Fields columns and group by City and sort by No. of Sport Fields. groupby() won't work here because I am not calculating anything.

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