Correct

落马

/ luòmǎ / 
Strokes

Definition

(lit.) to fall from a horse/(fig.) to suffer a setback/to come a cropper/to be sacked (e.g. for corruption)

Example

As a Verb

fall off/from a horse; come a cropper

1
Zhōng
中
jiàn
箭
luòmǎ
落马

be hit by an arrow and fall off the horse

As a Verb

be defeated in a battle or match

2
Zhè
这
míng
名
tóuhào
头号
zhǒngzixuǎnshǒu
种子选手
zài
在
bànjuésài
半决赛
zhōng
中
luòmǎ
落马
  
。

The number one seed was beaten in the semi-final.

As a Verb

be removed from one's position due to corruption

3
Bùshǎo
不少
gāojí
高级
guānyuán
官员
yīn
因
fǔbài
腐败
luòmǎ
落马
  
。

A number of key officials have been removed from their positions for corruption.