Hvem daterede Johan Wallberg?

Johan Mikael Wallberg (born 18 March 1977 in Karlsborg, Sweden) is a former freestyle swimmer from Sweden. He competed twice at the Summer Olympics for his native country, in 1996 and 2000, both in the Men's 4 × 100 m freestyle relay. After his active career he became coach for Swedish swimmer Therese Alshammar. During the autumn of 2016, he became coach for Sarah Sjöström.

Therese Alshammar (26. august 1977 i Solna kommune, Stockholms län) er en svensk svømmer, som har vundet tre olympiske medaljer, 25 VM medaljer og 43 EM medaljer. I 2011 modtog hun Radiosportens Jerringpris for sportspræstation året 2010. I 2011 blev hun hædret med Svenska Dagbladets guldmedalje. I februar 2012 modtog hun H.M. Konungens medalj i 8. størrelse.