Jürgen Klopp is the subject. Announces is the verb. Shock Liverpool soccer club exit is the object. Shock Liverpool soccer club exit = his exit from Liverpool soccer club (and this exit is a shock). In blow for US owners means that this is bad news for the owners (because it will damage the share price). This language is pretty typical of headlines. It doesn't follow the pattern of everyday speech .

Jürgen Klopp very unexpectedly announces that he is leaving (exiting) Liverpool soccer club. This is a sudden, damaging event (blow) for the American owners.

Hi kelly, "exit in" is actually two separate phrases, like this: 1. Liverpool soccer club "exit". 2. "in" blow for U.S. owners. This headline is 3 short phrases: 1. Jürgen Klopp announces shock. 2. Liverpool soccer club "exit". 3. "in" blow for U.S. owners. I hope this helps you. Have a good day.

Jürgen Klopp is the subject, 'announces' is the verb : 'Klopp announces . . exit' ie departure [the object] 'in blow' i e disappointment 'for [the club's] owners'. 'shock' ie. unexpected describes 'exit'. The 'exit' is from Liverpool Football Club [the North American newspaper calls it a soccer club]; 'Liverpool soccer club' has been made in to an 'honorary adjective' also describing 'exit'. This style of writing is normal for newspaper headlines but requires familiarity with English to decipher. You can see that articles ['a' blow, 'the' US owners] are omitted, as is the possessive pronoun [ 'his' exit], and the preposition 'from' Liverpool soccer club.

What makes this sentence difficult is that it uses nouns as adjectives. This CAN be done. For example: "People who live in GLASS houses should not throw stones" "I hope the HOME team wins". Your sentence uses two nouns as adjectives: (1) shock, and (2) Liverpool Soccer Club. "Liverpool Soccer Club" is a proper noun and should be capitalized. Both of these noun/adjectives modify the direct object of the sentence, which is "exit".