Complex sentence: In 1929, Mladi Radnik changed its name to Radnički which means "Labour ´ s" in Serbian and its roots come from the relation the club had with labour movements during the first half of the 20th century.
Split into simpler sentences: In 1929, Mladi Radnik changed its name to Radnički. The name Radnički means "Labour ´ s" in Serbian and its roots come from the relation the club had with labour movements during the first half of the 20th century.