diff --git a/Cargo.lock b/Cargo.lock
index d57ab8f4f91..bde79e64c65 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10255,6 +10255,7 @@ dependencies = [
  "starknet_batcher_types",
  "starknet_mempool_types",
  "starknet_sequencer_infra",
+ "starknet_state_sync_types",
  "thiserror",
  "tokio",
  "tracing",
diff --git a/crates/starknet_batcher/Cargo.toml b/crates/starknet_batcher/Cargo.toml
index 7f14eb059da..ad23321bc98 100644
--- a/crates/starknet_batcher/Cargo.toml
+++ b/crates/starknet_batcher/Cargo.toml
@@ -21,6 +21,7 @@ starknet_api.workspace = true
 starknet_batcher_types.workspace = true
 starknet_mempool_types.workspace = true
 starknet_sequencer_infra.workspace = true
+starknet_state_sync_types.workspace = true
 thiserror.workspace = true
 tokio.workspace = true
 tracing.workspace = true
diff --git a/crates/starknet_batcher/src/batcher.rs b/crates/starknet_batcher/src/batcher.rs
index c6d034a3ff1..2ab68759dc4 100644
--- a/crates/starknet_batcher/src/batcher.rs
+++ b/crates/starknet_batcher/src/batcher.rs
@@ -30,6 +30,7 @@ use starknet_batcher_types::errors::BatcherError;
 use starknet_mempool_types::communication::SharedMempoolClient;
 use starknet_mempool_types::mempool_types::CommitBlockArgs;
 use starknet_sequencer_infra::component_definitions::ComponentStarter;
+use starknet_state_sync_types::state_sync_types::SyncBlock;
 use tracing::{debug, error, info, instrument, trace};
 
 use crate::block_builder::{
@@ -344,6 +345,11 @@ impl Batcher {
         })
     }
 
+    // TODO(Arni): Impl add sync block
+    pub async fn add_sync_block(&mut self, _sync_block: SyncBlock) -> BatcherResult<()> {
+        todo!("Implement add sync block");
+    }
+
     #[instrument(skip(self), err)]
     pub async fn decision_reached(&mut self, input: DecisionReachedInput) -> BatcherResult<()> {
         let proposal_id = input.proposal_id;
diff --git a/crates/starknet_batcher/src/communication.rs b/crates/starknet_batcher/src/communication.rs
index cf13381c85c..45451e25d44 100644
--- a/crates/starknet_batcher/src/communication.rs
+++ b/crates/starknet_batcher/src/communication.rs
@@ -33,8 +33,9 @@ impl ComponentRequestHandler<BatcherRequest, BatcherResponse> for Batcher {
             BatcherRequest::SendProposalContent(input) => {
                 BatcherResponse::SendProposalContent(self.send_proposal_content(input).await)
             }
-            // TODO(alonh): fill this
-            BatcherRequest::AddSyncBlock(_sync_block) => BatcherResponse::AddSyncBlock(Ok(())),
+            BatcherRequest::AddSyncBlock(sync_block) => {
+                BatcherResponse::AddSyncBlock(self.add_sync_block(sync_block).await)
+            }
         }
     }
 }
diff --git a/crates/starknet_batcher_types/src/communication.rs b/crates/starknet_batcher_types/src/communication.rs
index 0dbca627b51..6f60a2b9fd6 100644
--- a/crates/starknet_batcher_types/src/communication.rs
+++ b/crates/starknet_batcher_types/src/communication.rs
@@ -69,11 +69,12 @@ pub trait BatcherClient: Send + Sync {
     /// From this point onwards, the batcher will accept requests only for proposals associated
     /// with this height.
     async fn start_height(&self, input: StartHeightInput) -> BatcherClientResult<()>;
+    /// Add a block that came from the state sync. Update the batcher's state and commit the
+    /// transactions to the mempool.
+    async fn add_sync_block(&self, sync_block: SyncBlock) -> BatcherClientResult<()>;
     /// Notifies the batcher that a decision has been reached.
     /// This closes the process of the given height, and the accepted proposal is committed.
     async fn decision_reached(&self, input: DecisionReachedInput) -> BatcherClientResult<()>;
-
-    async fn add_sync_block(&self, sync_block: SyncBlock) -> BatcherClientResult<()>;
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]