A third baseman is chasing a base runner back to second base.
The third baseman fell and broke his leg when he was trying to get a runner out at second.
If a third basemen is chasing a runner is does not follow that he fell and broke his leg. Most baseball plays do not involve injuries. A player chasing a runner back to second is not necessarily trying to get a runner out. The goal of chasing a base runner can be simply to get the runner to return to second base.
exists e1 s1 s2 x1 x2 x3 x4 x5.(Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & to(x4,x5) & n_base(x5) & a_second(s2) & Theme(s2,x5) & back(x2,x4) & n_thing(x4) & n_runner(x2) & of(x2,x3) & n_base(x3) & n_baseman(x1) & a_third(s1) & Theme(s1,x1))
exists e2 e1 p1 s1 s2 x1 x2.(n_male(x1) & n_male(x1) & n_leg(x2) & of(x2,x1) & n_baseman(x1) & a_third(s2) & Theme(s2,x1) & a_third(s1) & Theme(s1,x1) & exists e3 p2.(Topic(e3,p2) & Actor(e3,x1) & v_try(e3) & exists e4 s3 s4 x3.(at(e4,s4) & Theme(s4,x1) & a_second(s4) & a_out(s3) & Manner(e4,s3) & Theme(e4,x3) & Actor(e4,x1) & v_get(e4) & n_runner(x3))) & when(e2,p1) & Theme(e2,x2) & Actor(e2,x1) & v_break(e2) & Actor(e1,x1) & v_fall(e1))